Hi Ram,

Pydantic core has a problem in AIX for which compiler team is working on the same.

What I did in my LPAR is first install maturin and pydantic_core using dnf.

dnf install maturin python3-pydantic-core

After that you try manually like below. It will install. Please see my LPAR output below. Let me know if there are further issues. We'll help. Also, what is your use case for the same?
python3 -m pip install fastapi uvicorn


Installing collected packages: uvicorn, typing-extensions, annotated-types, typing-inspection, starlette, pydantic, fastapi
  WARNING: The script uvicorn is installed in '//cust_install/opt/freeware/bin' which is not on PATH.
  Consider adding this directory to PATH or, if you prefer to suppress this warning, use --no-warn-script-location.
  Attempting uninstall: typing-extensions
    Found existing installation: typing_extensions 4.12.2
    Uninstalling typing_extensions-4.12.2:
      Successfully uninstalled typing_extensions-4.12.2
   ---------------------------------- ----- 6/7 [fastapi]  WARNING: The script fastapi is installed in '//cust_install/opt/freeware/bin' which is not on PATH.
  Consider adding this directory to PATH or, if you prefer to suppress this warning, use --no-warn-script-location.
ERROR: pip's dependency resolver does not currently take into account all the packages that are installed. This behaviour is the source of the following dependency conflicts.
pyopenssl 25.1.0 requires cryptography<46,>=41.0.5, but you have cryptography 48.0.0 which is incompatible.
Successfully installed annotated-types-0.8.0 fastapi-0.141.1 pydantic-2.13.4 starlette-1.6.0 typing-extensions-4.16.0 typing-inspection-0.4.4 uvicorn-0.52.4

Hi Aditya,

Thanks for your quick support, our use case is to implement API for one of the customer.

I tried the same after installed  maturin python3-pydantic-core packages, but still same issue. please assist.

Regards,

Ramkumar

Hi Ram,

Pydantic core has a problem in AIX for which compiler team is working on the same.

What I did in my LPAR is first install maturin and pydantic_core using dnf.

dnf install maturin python3-pydantic-core

After that you try manually like below. It will install. Please see my LPAR output below. Let me know if there are further issues. We'll help. Also, what is your use case for the same?
python3 -m pip install fastapi uvicorn


Installing collected packages: uvicorn, typing-extensions, annotated-types, typing-inspection, starlette, pydantic, fastapi
  WARNING: The script uvicorn is installed in '//cust_install/opt/freeware/bin' which is not on PATH.
  Consider adding this directory to PATH or, if you prefer to suppress this warning, use --no-warn-script-location.
  Attempting uninstall: typing-extensions
    Found existing installation: typing_extensions 4.12.2
    Uninstalling typing_extensions-4.12.2:
      Successfully uninstalled typing_extensions-4.12.2
   ---------------------------------- ----- 6/7 [fastapi]  WARNING: The script fastapi is installed in '//cust_install/opt/freeware/bin' which is not on PATH.
  Consider adding this directory to PATH or, if you prefer to suppress this warning, use --no-warn-script-location.
ERROR: pip's dependency resolver does not currently take into account all the packages that are installed. This behaviour is the source of the following dependency conflicts.
pyopenssl 25.1.0 requires cryptography<46,>=41.0.5, but you have cryptography 48.0.0 which is incompatible.
Successfully installed annotated-types-0.8.0 fastapi-0.141.1 pydantic-2.13.4 starlette-1.6.0 typing-extensions-4.16.0 typing-inspection-0.4.4 uvicorn-0.52.4

Hi,

python is still preferring the cached maturin and pydantic_core possibly because the pyproject.toml files have got updated. 

Please run /opt/freeware/bin/python3 -m pip cache purge

This will clean the cache and then run
dnf install python3-pydantic*
dnf install python3-maturin
export CC="gcc -maix64"
/opt/freeware/bin/python3 -m pip install fastapi==0.115.4 uvicorn --no-deps


Hope this works. If not, paste me the output.

Hi Aditya,

Thanks for your quick support, our use case is to implement API for one of the customer.

I tried the same after installed  maturin python3-pydantic-core packages, but still same issue. please assist.

Regards,

Ramkumar

Hi Ram,

Pydantic core has a problem in AIX for which compiler team is working on the same.

What I did in my LPAR is first install maturin and pydantic_core using dnf.

dnf install maturin python3-pydantic-core

After that you try manually like below. It will install. Please see my LPAR output below. Let me know if there are further issues. We'll help. Also, what is your use case for the same?
python3 -m pip install fastapi uvicorn


Installing collected packages: uvicorn, typing-extensions, annotated-types, typing-inspection, starlette, pydantic, fastapi
  WARNING: The script uvicorn is installed in '//cust_install/opt/freeware/bin' which is not on PATH.
  Consider adding this directory to PATH or, if you prefer to suppress this warning, use --no-warn-script-location.
  Attempting uninstall: typing-extensions
    Found existing installation: typing_extensions 4.12.2
    Uninstalling typing_extensions-4.12.2:
      Successfully uninstalled typing_extensions-4.12.2
   ---------------------------------- ----- 6/7 [fastapi]  WARNING: The script fastapi is installed in '//cust_install/opt/freeware/bin' which is not on PATH.
  Consider adding this directory to PATH or, if you prefer to suppress this warning, use --no-warn-script-location.
ERROR: pip's dependency resolver does not currently take into account all the packages that are installed. This behaviour is the source of the following dependency conflicts.
pyopenssl 25.1.0 requires cryptography<46,>=41.0.5, but you have cryptography 48.0.0 which is incompatible.
Successfully installed annotated-types-0.8.0 fastapi-0.141.1 pydantic-2.13.4 starlette-1.6.0 typing-extensions-4.16.0 typing-inspection-0.4.4 uvicorn-0.52.4

Hi Aditya,

We could see it installed now but below commands output shows some error. please assist

 # /opt/freeware/bin/python3 -m pip install fastapi==0.115.4 uvicorn --no-deps
Collecting fastapi==0.115.4
  Downloading fastapi-0.115.4-py3-none-any.whl.metadata (27 kB)
Collecting uvicorn
  Downloading uvicorn-0.52.4-py3-none-any.whl.metadata (6.6 kB)
Downloading fastapi-0.115.4-py3-none-any.whl (94 kB)
Downloading uvicorn-0.52.4-py3-none-any.whl (79 kB)
Installing collected packages: uvicorn, fastapi
Successfully installed fastapi-0.115.4 uvicorn-0.52.4
WARNING: Running pip as the 'root' user can result in broken permissions and conflicting behaviour with the system package manager, possibly rendering your system unusable. It is recommended to use a virtual environment instead: https://pip.pypa.io/warnings/venv. Use the --root-user-action option if you know what you are doing and want to suppress this warning.
root@oldtut004:/ # Read from remote host oldtut004: Connection reset by peer
Connection to oldtut004 closed.
client_loop: send disconnect: Broken pipe
$

autoh> /home/autoh$pip3 show fastapi
ERROR: Exception:
Traceback (most recent call last):
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/cli/base_command.py", line 107, in _run_wrapper
    status = _inner_run()
             ^^^^^^^^^^^^
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/cli/base_command.py", line 98, in _inner_run
    return self.run(options, args)
           ^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/commands/show.py", line 57, in run
    if not print_results(
           ^^^^^^^^^^^^^^
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/commands/show.py", line 192, in print_results
    metadata_version_tuple = tuple(map(int, dist.metadata_version.split(".")))
                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
ValueError: invalid literal for int() with base 10: ''

autoh> /home/autoh$pip3 show uvicorn
ERROR: Exception:
Traceback (most recent call last):
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/cli/base_command.py", line 107, in _run_wrapper
    status = _inner_run()
             ^^^^^^^^^^^^
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/cli/base_command.py", line 98, in _inner_run
    return self.run(options, args)
           ^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/commands/show.py", line 57, in run
    if not print_results(
           ^^^^^^^^^^^^^^
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/commands/show.py", line 192, in print_results
    metadata_version_tuple = tuple(map(int, dist.metadata_version.split(".")))
                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
ValueError: invalid literal for int() with base 10: ''

Regards,

Ramkumar

Hi,

python is still preferring the cached maturin and pydantic_core possibly because the pyproject.toml files have got updated. 

Please run /opt/freeware/bin/python3 -m pip cache purge

This will clean the cache and then run
dnf install python3-pydantic*
dnf install python3-maturin
export CC="gcc -maix64"
/opt/freeware/bin/python3 -m pip install fastapi==0.115.4 uvicorn --no-deps


Hope this works. If not, paste me the output.

Hi Aditya,

Thanks for your quick support, our use case is to implement API for one of the customer.

I tried the same after installed  maturin python3-pydantic-core packages, but still same issue. please assist.

Regards,

Ramkumar

Hi Ram,

Pydantic core has a problem in AIX for which compiler team is working on the same.

What I did in my LPAR is first install maturin and pydantic_core using dnf.

dnf install maturin python3-pydantic-core

After that you try manually like below. It will install. Please see my LPAR output below. Let me know if there are further issues. We'll help. Also, what is your use case for the same?
python3 -m pip install fastapi uvicorn


Installing collected packages: uvicorn, typing-extensions, annotated-types, typing-inspection, starlette, pydantic, fastapi
  WARNING: The script uvicorn is installed in '//cust_install/opt/freeware/bin' which is not on PATH.
  Consider adding this directory to PATH or, if you prefer to suppress this warning, use --no-warn-script-location.
  Attempting uninstall: typing-extensions
    Found existing installation: typing_extensions 4.12.2
    Uninstalling typing_extensions-4.12.2:
      Successfully uninstalled typing_extensions-4.12.2
   ---------------------------------- ----- 6/7 [fastapi]  WARNING: The script fastapi is installed in '//cust_install/opt/freeware/bin' which is not on PATH.
  Consider adding this directory to PATH or, if you prefer to suppress this warning, use --no-warn-script-location.
ERROR: pip's dependency resolver does not currently take into account all the packages that are installed. This behaviour is the source of the following dependency conflicts.
pyopenssl 25.1.0 requires cryptography<46,>=41.0.5, but you have cryptography 48.0.0 which is incompatible.
Successfully installed annotated-types-0.8.0 fastapi-0.141.1 pydantic-2.13.4 starlette-1.6.0 typing-extensions-4.16.0 typing-inspection-0.4.4 uvicorn-0.52.4

Hi Ram,

python3 -c "
import pkg_resources
for d in pkg_resources.working_set:
    try:
        print(d.project_name, d.version)
    except Exception as e:
        print(f'ERROR in package folder: {d.egg_info}')
"

What is the output of this?

Hi Aditya,

We could see it installed now but below commands output shows some error. please assist

 # /opt/freeware/bin/python3 -m pip install fastapi==0.115.4 uvicorn --no-deps
Collecting fastapi==0.115.4
  Downloading fastapi-0.115.4-py3-none-any.whl.metadata (27 kB)
Collecting uvicorn
  Downloading uvicorn-0.52.4-py3-none-any.whl.metadata (6.6 kB)
Downloading fastapi-0.115.4-py3-none-any.whl (94 kB)
Downloading uvicorn-0.52.4-py3-none-any.whl (79 kB)
Installing collected packages: uvicorn, fastapi
Successfully installed fastapi-0.115.4 uvicorn-0.52.4
WARNING: Running pip as the 'root' user can result in broken permissions and conflicting behaviour with the system package manager, possibly rendering your system unusable. It is recommended to use a virtual environment instead: https://pip.pypa.io/warnings/venv. Use the --root-user-action option if you know what you are doing and want to suppress this warning.
root@oldtut004:/ # Read from remote host oldtut004: Connection reset by peer
Connection to oldtut004 closed.
client_loop: send disconnect: Broken pipe
$

autoh> /home/autoh$pip3 show fastapi
ERROR: Exception:
Traceback (most recent call last):
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/cli/base_command.py", line 107, in _run_wrapper
    status = _inner_run()
             ^^^^^^^^^^^^
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/cli/base_command.py", line 98, in _inner_run
    return self.run(options, args)
           ^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/commands/show.py", line 57, in run
    if not print_results(
           ^^^^^^^^^^^^^^
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/commands/show.py", line 192, in print_results
    metadata_version_tuple = tuple(map(int, dist.metadata_version.split(".")))
                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
ValueError: invalid literal for int() with base 10: ''

autoh> /home/autoh$pip3 show uvicorn
ERROR: Exception:
Traceback (most recent call last):
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/cli/base_command.py", line 107, in _run_wrapper
    status = _inner_run()
             ^^^^^^^^^^^^
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/cli/base_command.py", line 98, in _inner_run
    return self.run(options, args)
           ^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/commands/show.py", line 57, in run
    if not print_results(
           ^^^^^^^^^^^^^^
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/commands/show.py", line 192, in print_results
    metadata_version_tuple = tuple(map(int, dist.metadata_version.split(".")))
                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
ValueError: invalid literal for int() with base 10: ''

Regards,

Ramkumar

Hi,

python is still preferring the cached maturin and pydantic_core possibly because the pyproject.toml files have got updated. 

Please run /opt/freeware/bin/python3 -m pip cache purge

This will clean the cache and then run
dnf install python3-pydantic*
dnf install python3-maturin
export CC="gcc -maix64"
/opt/freeware/bin/python3 -m pip install fastapi==0.115.4 uvicorn --no-deps


Hope this works. If not, paste me the output.

Hi Aditya,

Thanks for your quick support, our use case is to implement API for one of the customer.

I tried the same after installed  maturin python3-pydantic-core packages, but still same issue. please assist.

Regards,

Ramkumar

Hi Ram,

Pydantic core has a problem in AIX for which compiler team is working on the same.

What I did in my LPAR is first install maturin and pydantic_core using dnf.

dnf install maturin python3-pydantic-core

After that you try manually like below. It will install. Please see my LPAR output below. Let me know if there are further issues. We'll help. Also, what is your use case for the same?
python3 -m pip install fastapi uvicorn


Installing collected packages: uvicorn, typing-extensions, annotated-types, typing-inspection, starlette, pydantic, fastapi
  WARNING: The script uvicorn is installed in '//cust_install/opt/freeware/bin' which is not on PATH.
  Consider adding this directory to PATH or, if you prefer to suppress this warning, use --no-warn-script-location.
  Attempting uninstall: typing-extensions
    Found existing installation: typing_extensions 4.12.2
    Uninstalling typing_extensions-4.12.2:
      Successfully uninstalled typing_extensions-4.12.2
   ---------------------------------- ----- 6/7 [fastapi]  WARNING: The script fastapi is installed in '//cust_install/opt/freeware/bin' which is not on PATH.
  Consider adding this directory to PATH or, if you prefer to suppress this warning, use --no-warn-script-location.
ERROR: pip's dependency resolver does not currently take into account all the packages that are installed. This behaviour is the source of the following dependency conflicts.
pyopenssl 25.1.0 requires cryptography<46,>=41.0.5, but you have cryptography 48.0.0 which is incompatible.
Successfully installed annotated-types-0.8.0 fastapi-0.141.1 pydantic-2.13.4 starlette-1.6.0 typing-extensions-4.16.0 typing-inspection-0.4.4 uvicorn-0.52.4

There is something corrupted in the LPAR, with user autoh. We need to remove that. Not sure what package. That output will tell.

Hi Ram,

python3 -c "
import pkg_resources
for d in pkg_resources.working_set:
    try:
        print(d.project_name, d.version)
    except Exception as e:
        print(f'ERROR in package folder: {d.egg_info}')
"

What is the output of this?

Hi Aditya,

We could see it installed now but below commands output shows some error. please assist

 # /opt/freeware/bin/python3 -m pip install fastapi==0.115.4 uvicorn --no-deps
Collecting fastapi==0.115.4
  Downloading fastapi-0.115.4-py3-none-any.whl.metadata (27 kB)
Collecting uvicorn
  Downloading uvicorn-0.52.4-py3-none-any.whl.metadata (6.6 kB)
Downloading fastapi-0.115.4-py3-none-any.whl (94 kB)
Downloading uvicorn-0.52.4-py3-none-any.whl (79 kB)
Installing collected packages: uvicorn, fastapi
Successfully installed fastapi-0.115.4 uvicorn-0.52.4
WARNING: Running pip as the 'root' user can result in broken permissions and conflicting behaviour with the system package manager, possibly rendering your system unusable. It is recommended to use a virtual environment instead: https://pip.pypa.io/warnings/venv. Use the --root-user-action option if you know what you are doing and want to suppress this warning.
root@oldtut004:/ # Read from remote host oldtut004: Connection reset by peer
Connection to oldtut004 closed.
client_loop: send disconnect: Broken pipe
$

autoh> /home/autoh$pip3 show fastapi
ERROR: Exception:
Traceback (most recent call last):
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/cli/base_command.py", line 107, in _run_wrapper
    status = _inner_run()
             ^^^^^^^^^^^^
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/cli/base_command.py", line 98, in _inner_run
    return self.run(options, args)
           ^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/commands/show.py", line 57, in run
    if not print_results(
           ^^^^^^^^^^^^^^
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/commands/show.py", line 192, in print_results
    metadata_version_tuple = tuple(map(int, dist.metadata_version.split(".")))
                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
ValueError: invalid literal for int() with base 10: ''

autoh> /home/autoh$pip3 show uvicorn
ERROR: Exception:
Traceback (most recent call last):
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/cli/base_command.py", line 107, in _run_wrapper
    status = _inner_run()
             ^^^^^^^^^^^^
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/cli/base_command.py", line 98, in _inner_run
    return self.run(options, args)
           ^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/commands/show.py", line 57, in run
    if not print_results(
           ^^^^^^^^^^^^^^
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/commands/show.py", line 192, in print_results
    metadata_version_tuple = tuple(map(int, dist.metadata_version.split(".")))
                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
ValueError: invalid literal for int() with base 10: ''

Regards,

Ramkumar

Hi,

python is still preferring the cached maturin and pydantic_core possibly because the pyproject.toml files have got updated. 

Please run /opt/freeware/bin/python3 -m pip cache purge

This will clean the cache and then run
dnf install python3-pydantic*
dnf install python3-maturin
export CC="gcc -maix64"
/opt/freeware/bin/python3 -m pip install fastapi==0.115.4 uvicorn --no-deps


Hope this works. If not, paste me the output.

Hi Aditya,

Thanks for your quick support, our use case is to implement API for one of the customer.

I tried the same after installed  maturin python3-pydantic-core packages, but still same issue. please assist.

Regards,

Ramkumar

Hi Ram,

Pydantic core has a problem in AIX for which compiler team is working on the same.

What I did in my LPAR is first install maturin and pydantic_core using dnf.

dnf install maturin python3-pydantic-core

After that you try manually like below. It will install. Please see my LPAR output below. Let me know if there are further issues. We'll help. Also, what is your use case for the same?
python3 -m pip install fastapi uvicorn


Installing collected packages: uvicorn, typing-extensions, annotated-types, typing-inspection, starlette, pydantic, fastapi
  WARNING: The script uvicorn is installed in '//cust_install/opt/freeware/bin' which is not on PATH.
  Consider adding this directory to PATH or, if you prefer to suppress this warning, use --no-warn-script-location.
  Attempting uninstall: typing-extensions
    Found existing installation: typing_extensions 4.12.2
    Uninstalling typing_extensions-4.12.2:
      Successfully uninstalled typing_extensions-4.12.2
   ---------------------------------- ----- 6/7 [fastapi]  WARNING: The script fastapi is installed in '//cust_install/opt/freeware/bin' which is not on PATH.
  Consider adding this directory to PATH or, if you prefer to suppress this warning, use --no-warn-script-location.
ERROR: pip's dependency resolver does not currently take into account all the packages that are installed. This behaviour is the source of the following dependency conflicts.
pyopenssl 25.1.0 requires cryptography<46,>=41.0.5, but you have cryptography 48.0.0 which is incompatible.
Successfully installed annotated-types-0.8.0 fastapi-0.141.1 pydantic-2.13.4 starlette-1.6.0 typing-extensions-4.16.0 typing-inspection-0.4.4 uvicorn-0.52.4

Hi Aditya,

Please find the output, executed from root user and autoh user.

 # /opt/freeware/bin/python3 -c "
> import pkg_resources
> for d in pkg_resources.working_set:
>     try:
>         print(d.project_name, d.version)
>     except Exception as e:
>         print(f'ERROR in package folder: {d.egg_info}')
> "
Traceback (most recent call last):
  File "<string>", line 2, in <module>
ModuleNotFoundError: No module named 'pkg_resources'

autoh> /home/autoh$/opt/freeware/bin/python3 -c "
> import pkg_resources
> for d in pkg_resources.working_set:
>     try:
>         print(d.project_name, d.version)
>     except Exception as e:
>         print(f'ERROR in package folder: {d.egg_info}')
> "
Traceback (most recent call last):
  File "<string>", line 2, in <module>
ModuleNotFoundError: No module named 'pkg_resources'

Regards,

Ramkumar

There is something corrupted in the LPAR, with user autoh. We need to remove that. Not sure what package. That output will tell.

Hi Ram,

python3 -c "
import pkg_resources
for d in pkg_resources.working_set:
    try:
        print(d.project_name, d.version)
    except Exception as e:
        print(f'ERROR in package folder: {d.egg_info}')
"

What is the output of this?

Hi Aditya,

We could see it installed now but below commands output shows some error. please assist

 # /opt/freeware/bin/python3 -m pip install fastapi==0.115.4 uvicorn --no-deps
Collecting fastapi==0.115.4
  Downloading fastapi-0.115.4-py3-none-any.whl.metadata (27 kB)
Collecting uvicorn
  Downloading uvicorn-0.52.4-py3-none-any.whl.metadata (6.6 kB)
Downloading fastapi-0.115.4-py3-none-any.whl (94 kB)
Downloading uvicorn-0.52.4-py3-none-any.whl (79 kB)
Installing collected packages: uvicorn, fastapi
Successfully installed fastapi-0.115.4 uvicorn-0.52.4
WARNING: Running pip as the 'root' user can result in broken permissions and conflicting behaviour with the system package manager, possibly rendering your system unusable. It is recommended to use a virtual environment instead: https://pip.pypa.io/warnings/venv. Use the --root-user-action option if you know what you are doing and want to suppress this warning.
root@oldtut004:/ # Read from remote host oldtut004: Connection reset by peer
Connection to oldtut004 closed.
client_loop: send disconnect: Broken pipe
$

autoh> /home/autoh$pip3 show fastapi
ERROR: Exception:
Traceback (most recent call last):
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/cli/base_command.py", line 107, in _run_wrapper
    status = _inner_run()
             ^^^^^^^^^^^^
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/cli/base_command.py", line 98, in _inner_run
    return self.run(options, args)
           ^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/commands/show.py", line 57, in run
    if not print_results(
           ^^^^^^^^^^^^^^
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/commands/show.py", line 192, in print_results
    metadata_version_tuple = tuple(map(int, dist.metadata_version.split(".")))
                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
ValueError: invalid literal for int() with base 10: ''

autoh> /home/autoh$pip3 show uvicorn
ERROR: Exception:
Traceback (most recent call last):
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/cli/base_command.py", line 107, in _run_wrapper
    status = _inner_run()
             ^^^^^^^^^^^^
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/cli/base_command.py", line 98, in _inner_run
    return self.run(options, args)
           ^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/commands/show.py", line 57, in run
    if not print_results(
           ^^^^^^^^^^^^^^
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/commands/show.py", line 192, in print_results
    metadata_version_tuple = tuple(map(int, dist.metadata_version.split(".")))
                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
ValueError: invalid literal for int() with base 10: ''

Regards,

Ramkumar

Hi,

python is still preferring the cached maturin and pydantic_core possibly because the pyproject.toml files have got updated. 

Please run /opt/freeware/bin/python3 -m pip cache purge

This will clean the cache and then run
dnf install python3-pydantic*
dnf install python3-maturin
export CC="gcc -maix64"
/opt/freeware/bin/python3 -m pip install fastapi==0.115.4 uvicorn --no-deps


Hope this works. If not, paste me the output.

Hi Aditya,

Thanks for your quick support, our use case is to implement API for one of the customer.

I tried the same after installed  maturin python3-pydantic-core packages, but still same issue. please assist.

Regards,

Ramkumar

Hi Ram,

Pydantic core has a problem in AIX for which compiler team is working on the same.

What I did in my LPAR is first install maturin and pydantic_core using dnf.

dnf install maturin python3-pydantic-core

After that you try manually like below. It will install. Please see my LPAR output below. Let me know if there are further issues. We'll help. Also, what is your use case for the same?
python3 -m pip install fastapi uvicorn


Installing collected packages: uvicorn, typing-extensions, annotated-types, typing-inspection, starlette, pydantic, fastapi
  WARNING: The script uvicorn is installed in '//cust_install/opt/freeware/bin' which is not on PATH.
  Consider adding this directory to PATH or, if you prefer to suppress this warning, use --no-warn-script-location.
  Attempting uninstall: typing-extensions
    Found existing installation: typing_extensions 4.12.2
    Uninstalling typing_extensions-4.12.2:
      Successfully uninstalled typing_extensions-4.12.2
   ---------------------------------- ----- 6/7 [fastapi]  WARNING: The script fastapi is installed in '//cust_install/opt/freeware/bin' which is not on PATH.
  Consider adding this directory to PATH or, if you prefer to suppress this warning, use --no-warn-script-location.
ERROR: pip's dependency resolver does not currently take into account all the packages that are installed. This behaviour is the source of the following dependency conflicts.
pyopenssl 25.1.0 requires cryptography<46,>=41.0.5, but you have cryptography 48.0.0 which is incompatible.
Successfully installed annotated-types-0.8.0 fastapi-0.141.1 pydantic-2.13.4 starlette-1.6.0 typing-extensions-4.16.0 typing-inspection-0.4.4 uvicorn-0.52.4

Please retry after dnf install python3-setuptools-80.9.0-3.noarch

⁣ Also, along with that code output please retry pip3 show commands and see if it works/paste the outputs if it does not. 

Hi Aditya,

Please find the output, executed from root user and autoh user.

 # /opt/freeware/bin/python3 -c "
> import pkg_resources
> for d in pkg_resources.working_set:
>     try:
>         print(d.project_name, d.version)
>     except Exception as e:
>         print(f'ERROR in package folder: {d.egg_info}')
> "
Traceback (most recent call last):
  File "<string>", line 2, in <module>
ModuleNotFoundError: No module named 'pkg_resources'

autoh> /home/autoh$/opt/freeware/bin/python3 -c "
> import pkg_resources
> for d in pkg_resources.working_set:
>     try:
>         print(d.project_name, d.version)
>     except Exception as e:
>         print(f'ERROR in package folder: {d.egg_info}')
> "
Traceback (most recent call last):
  File "<string>", line 2, in <module>
ModuleNotFoundError: No module named 'pkg_resources'

Regards,

Ramkumar

There is something corrupted in the LPAR, with user autoh. We need to remove that. Not sure what package. That output will tell.

Hi Ram,

python3 -c "
import pkg_resources
for d in pkg_resources.working_set:
    try:
        print(d.project_name, d.version)
    except Exception as e:
        print(f'ERROR in package folder: {d.egg_info}')
"

What is the output of this?

Hi Aditya,

We could see it installed now but below commands output shows some error. please assist

 # /opt/freeware/bin/python3 -m pip install fastapi==0.115.4 uvicorn --no-deps
Collecting fastapi==0.115.4
  Downloading fastapi-0.115.4-py3-none-any.whl.metadata (27 kB)
Collecting uvicorn
  Downloading uvicorn-0.52.4-py3-none-any.whl.metadata (6.6 kB)
Downloading fastapi-0.115.4-py3-none-any.whl (94 kB)
Downloading uvicorn-0.52.4-py3-none-any.whl (79 kB)
Installing collected packages: uvicorn, fastapi
Successfully installed fastapi-0.115.4 uvicorn-0.52.4
WARNING: Running pip as the 'root' user can result in broken permissions and conflicting behaviour with the system package manager, possibly rendering your system unusable. It is recommended to use a virtual environment instead: https://pip.pypa.io/warnings/venv. Use the --root-user-action option if you know what you are doing and want to suppress this warning.
root@oldtut004:/ # Read from remote host oldtut004: Connection reset by peer
Connection to oldtut004 closed.
client_loop: send disconnect: Broken pipe
$

autoh> /home/autoh$pip3 show fastapi
ERROR: Exception:
Traceback (most recent call last):
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/cli/base_command.py", line 107, in _run_wrapper
    status = _inner_run()
             ^^^^^^^^^^^^
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/cli/base_command.py", line 98, in _inner_run
    return self.run(options, args)
           ^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/commands/show.py", line 57, in run
    if not print_results(
           ^^^^^^^^^^^^^^
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/commands/show.py", line 192, in print_results
    metadata_version_tuple = tuple(map(int, dist.metadata_version.split(".")))
                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
ValueError: invalid literal for int() with base 10: ''

autoh> /home/autoh$pip3 show uvicorn
ERROR: Exception:
Traceback (most recent call last):
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/cli/base_command.py", line 107, in _run_wrapper
    status = _inner_run()
             ^^^^^^^^^^^^
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/cli/base_command.py", line 98, in _inner_run
    return self.run(options, args)
           ^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/commands/show.py", line 57, in run
    if not print_results(
           ^^^^^^^^^^^^^^
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/commands/show.py", line 192, in print_results
    metadata_version_tuple = tuple(map(int, dist.metadata_version.split(".")))
                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
ValueError: invalid literal for int() with base 10: ''

Regards,

Ramkumar

Hi,

python is still preferring the cached maturin and pydantic_core possibly because the pyproject.toml files have got updated. 

Please run /opt/freeware/bin/python3 -m pip cache purge

This will clean the cache and then run
dnf install python3-pydantic*
dnf install python3-maturin
export CC="gcc -maix64"
/opt/freeware/bin/python3 -m pip install fastapi==0.115.4 uvicorn --no-deps


Hope this works. If not, paste me the output.

Hi Aditya,

Thanks for your quick support, our use case is to implement API for one of the customer.

I tried the same after installed  maturin python3-pydantic-core packages, but still same issue. please assist.

Regards,

Ramkumar

Hi Ram,

Pydantic core has a problem in AIX for which compiler team is working on the same.

What I did in my LPAR is first install maturin and pydantic_core using dnf.

dnf install maturin python3-pydantic-core

After that you try manually like below. It will install. Please see my LPAR output below. Let me know if there are further issues. We'll help. Also, what is your use case for the same?
python3 -m pip install fastapi uvicorn


Installing collected packages: uvicorn, typing-extensions, annotated-types, typing-inspection, starlette, pydantic, fastapi
  WARNING: The script uvicorn is installed in '//cust_install/opt/freeware/bin' which is not on PATH.
  Consider adding this directory to PATH or, if you prefer to suppress this warning, use --no-warn-script-location.
  Attempting uninstall: typing-extensions
    Found existing installation: typing_extensions 4.12.2
    Uninstalling typing_extensions-4.12.2:
      Successfully uninstalled typing_extensions-4.12.2
   ---------------------------------- ----- 6/7 [fastapi]  WARNING: The script fastapi is installed in '//cust_install/opt/freeware/bin' which is not on PATH.
  Consider adding this directory to PATH or, if you prefer to suppress this warning, use --no-warn-script-location.
ERROR: pip's dependency resolver does not currently take into account all the packages that are installed. This behaviour is the source of the following dependency conflicts.
pyopenssl 25.1.0 requires cryptography<46,>=41.0.5, but you have cryptography 48.0.0 which is incompatible.
Successfully installed annotated-types-0.8.0 fastapi-0.141.1 pydantic-2.13.4 starlette-1.6.0 typing-extensions-4.16.0 typing-inspection-0.4.4 uvicorn-0.52.4

Hi Adithya,

Please find the output below:

autoh> /home/autoh$/opt/freeware/bin/pip3 show
WARNING: ERROR: Please provide a package name or names.

autoh> /home/autoh$
autoh> /home/autoh$/opt/freeware/bin/python3 -c "
> import pkg_resources
> for d in pkg_resources.working_set:
>     try:
>         print(d.project_name, d.version)
>     except Exception as e:
>         print(f'ERROR in package folder: {d.egg_info}')
> "
<string>:2: UserWarning: pkg_resources is deprecated as an API. See https://setuptools.pypa.io/en/latest/pkg_resources.html. The pkg_resources package is slated for removal as early as 2025-11-30. Refrain from using this package or pin to Setuptools<81.
Traceback (most recent call last):
  File "<string>", line 2, in <module>
  File "/opt/freeware/lib/python3.12/site-packages/pkg_resources/__init__.py", line 3660, in <module>
    @_call_aside
     ^^^^^^^^^^^
  File "/opt/freeware/lib/python3.12/site-packages/pkg_resources/__init__.py", line 3644, in _call_aside
    f(*args, **kwargs)
  File "/opt/freeware/lib/python3.12/site-packages/pkg_resources/__init__.py", line 3673, in _initialize_master_working_set
    working_set = _declare_state('object', 'working_set', WorkingSet._build_master())
                                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/freeware/lib/python3.12/site-packages/pkg_resources/__init__.py", line 644, in _build_master
    ws = cls()
         ^^^^^
  File "/opt/freeware/lib/python3.12/site-packages/pkg_resources/__init__.py", line 637, in __init__
    self.add_entry(entry)
  File "/opt/freeware/lib/python3.12/site-packages/pkg_resources/__init__.py", line 693, in add_entry
    for dist in find_distributions(entry, True):
                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/freeware/lib/python3.12/site-packages/pkg_resources/__init__.py", line 2338, in find_on_path
    yield from factory(fullpath)
  File "/opt/freeware/lib/python3.12/site-packages/pkg_resources/__init__.py", line 2395, in distributions_from_metadata
    if len(os.listdir(path)) == 0:
           ^^^^^^^^^^^^^^^^
PermissionError: [Errno 13] Permission denied: '/opt/freeware/lib/python3.12/site-packages/fastapi-0.115.4.dist-info'
autoh> /home/autoh$

Please retry after dnf install python3-setuptools-80.9.0-3.noarch

⁣ Also, along with that code output please retry pip3 show commands and see if it works/paste the outputs if it does not. 

Hi Aditya,

Please find the output, executed from root user and autoh user.

 # /opt/freeware/bin/python3 -c "
> import pkg_resources
> for d in pkg_resources.working_set:
>     try:
>         print(d.project_name, d.version)
>     except Exception as e:
>         print(f'ERROR in package folder: {d.egg_info}')
> "
Traceback (most recent call last):
  File "<string>", line 2, in <module>
ModuleNotFoundError: No module named 'pkg_resources'

autoh> /home/autoh$/opt/freeware/bin/python3 -c "
> import pkg_resources
> for d in pkg_resources.working_set:
>     try:
>         print(d.project_name, d.version)
>     except Exception as e:
>         print(f'ERROR in package folder: {d.egg_info}')
> "
Traceback (most recent call last):
  File "<string>", line 2, in <module>
ModuleNotFoundError: No module named 'pkg_resources'

Regards,

Ramkumar

There is something corrupted in the LPAR, with user autoh. We need to remove that. Not sure what package. That output will tell.

Hi Ram,

python3 -c "
import pkg_resources
for d in pkg_resources.working_set:
    try:
        print(d.project_name, d.version)
    except Exception as e:
        print(f'ERROR in package folder: {d.egg_info}')
"

What is the output of this?

Hi Aditya,

We could see it installed now but below commands output shows some error. please assist

 # /opt/freeware/bin/python3 -m pip install fastapi==0.115.4 uvicorn --no-deps
Collecting fastapi==0.115.4
  Downloading fastapi-0.115.4-py3-none-any.whl.metadata (27 kB)
Collecting uvicorn
  Downloading uvicorn-0.52.4-py3-none-any.whl.metadata (6.6 kB)
Downloading fastapi-0.115.4-py3-none-any.whl (94 kB)
Downloading uvicorn-0.52.4-py3-none-any.whl (79 kB)
Installing collected packages: uvicorn, fastapi
Successfully installed fastapi-0.115.4 uvicorn-0.52.4
WARNING: Running pip as the 'root' user can result in broken permissions and conflicting behaviour with the system package manager, possibly rendering your system unusable. It is recommended to use a virtual environment instead: https://pip.pypa.io/warnings/venv. Use the --root-user-action option if you know what you are doing and want to suppress this warning.
root@oldtut004:/ # Read from remote host oldtut004: Connection reset by peer
Connection to oldtut004 closed.
client_loop: send disconnect: Broken pipe
$

autoh> /home/autoh$pip3 show fastapi
ERROR: Exception:
Traceback (most recent call last):
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/cli/base_command.py", line 107, in _run_wrapper
    status = _inner_run()
             ^^^^^^^^^^^^
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/cli/base_command.py", line 98, in _inner_run
    return self.run(options, args)
           ^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/commands/show.py", line 57, in run
    if not print_results(
           ^^^^^^^^^^^^^^
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/commands/show.py", line 192, in print_results
    metadata_version_tuple = tuple(map(int, dist.metadata_version.split(".")))
                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
ValueError: invalid literal for int() with base 10: ''

autoh> /home/autoh$pip3 show uvicorn
ERROR: Exception:
Traceback (most recent call last):
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/cli/base_command.py", line 107, in _run_wrapper
    status = _inner_run()
             ^^^^^^^^^^^^
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/cli/base_command.py", line 98, in _inner_run
    return self.run(options, args)
           ^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/commands/show.py", line 57, in run
    if not print_results(
           ^^^^^^^^^^^^^^
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/commands/show.py", line 192, in print_results
    metadata_version_tuple = tuple(map(int, dist.metadata_version.split(".")))
                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
ValueError: invalid literal for int() with base 10: ''

Regards,

Ramkumar

Hi,

python is still preferring the cached maturin and pydantic_core possibly because the pyproject.toml files have got updated. 

Please run /opt/freeware/bin/python3 -m pip cache purge

This will clean the cache and then run
dnf install python3-pydantic*
dnf install python3-maturin
export CC="gcc -maix64"
/opt/freeware/bin/python3 -m pip install fastapi==0.115.4 uvicorn --no-deps


Hope this works. If not, paste me the output.

Hi Aditya,

Thanks for your quick support, our use case is to implement API for one of the customer.

I tried the same after installed  maturin python3-pydantic-core packages, but still same issue. please assist.

Regards,

Ramkumar

Hi Ram,

Pydantic core has a problem in AIX for which compiler team is working on the same.

What I did in my LPAR is first install maturin and pydantic_core using dnf.

dnf install maturin python3-pydantic-core

After that you try manually like below. It will install. Please see my LPAR output below. Let me know if there are further issues. We'll help. Also, what is your use case for the same?
python3 -m pip install fastapi uvicorn


Installing collected packages: uvicorn, typing-extensions, annotated-types, typing-inspection, starlette, pydantic, fastapi
  WARNING: The script uvicorn is installed in '//cust_install/opt/freeware/bin' which is not on PATH.
  Consider adding this directory to PATH or, if you prefer to suppress this warning, use --no-warn-script-location.
  Attempting uninstall: typing-extensions
    Found existing installation: typing_extensions 4.12.2
    Uninstalling typing_extensions-4.12.2:
      Successfully uninstalled typing_extensions-4.12.2
   ---------------------------------- ----- 6/7 [fastapi]  WARNING: The script fastapi is installed in '//cust_install/opt/freeware/bin' which is not on PATH.
  Consider adding this directory to PATH or, if you prefer to suppress this warning, use --no-warn-script-location.
ERROR: pip's dependency resolver does not currently take into account all the packages that are installed. This behaviour is the source of the following dependency conflicts.
pyopenssl 25.1.0 requires cryptography<46,>=41.0.5, but you have cryptography 48.0.0 which is incompatible.
Successfully installed annotated-types-0.8.0 fastapi-0.141.1 pydantic-2.13.4 starlette-1.6.0 typing-extensions-4.16.0 typing-inspection-0.4.4 uvicorn-0.52.4

chmod -R o+rx /opt/freeware/lib/python3.12/site-packages/fastapi-0.115.4.dist-info

Can you fix the permissions to this and then retry.

Also give me output of
pip3 show fastapi

Hi Adithya,

Please find the output below:

autoh> /home/autoh$/opt/freeware/bin/pip3 show
WARNING: ERROR: Please provide a package name or names.

autoh> /home/autoh$
autoh> /home/autoh$/opt/freeware/bin/python3 -c "
> import pkg_resources
> for d in pkg_resources.working_set:
>     try:
>         print(d.project_name, d.version)
>     except Exception as e:
>         print(f'ERROR in package folder: {d.egg_info}')
> "
<string>:2: UserWarning: pkg_resources is deprecated as an API. See https://setuptools.pypa.io/en/latest/pkg_resources.html. The pkg_resources package is slated for removal as early as 2025-11-30. Refrain from using this package or pin to Setuptools<81.
Traceback (most recent call last):
  File "<string>", line 2, in <module>
  File "/opt/freeware/lib/python3.12/site-packages/pkg_resources/__init__.py", line 3660, in <module>
    @_call_aside
     ^^^^^^^^^^^
  File "/opt/freeware/lib/python3.12/site-packages/pkg_resources/__init__.py", line 3644, in _call_aside
    f(*args, **kwargs)
  File "/opt/freeware/lib/python3.12/site-packages/pkg_resources/__init__.py", line 3673, in _initialize_master_working_set
    working_set = _declare_state('object', 'working_set', WorkingSet._build_master())
                                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/freeware/lib/python3.12/site-packages/pkg_resources/__init__.py", line 644, in _build_master
    ws = cls()
         ^^^^^
  File "/opt/freeware/lib/python3.12/site-packages/pkg_resources/__init__.py", line 637, in __init__
    self.add_entry(entry)
  File "/opt/freeware/lib/python3.12/site-packages/pkg_resources/__init__.py", line 693, in add_entry
    for dist in find_distributions(entry, True):
                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/freeware/lib/python3.12/site-packages/pkg_resources/__init__.py", line 2338, in find_on_path
    yield from factory(fullpath)
  File "/opt/freeware/lib/python3.12/site-packages/pkg_resources/__init__.py", line 2395, in distributions_from_metadata
    if len(os.listdir(path)) == 0:
           ^^^^^^^^^^^^^^^^
PermissionError: [Errno 13] Permission denied: '/opt/freeware/lib/python3.12/site-packages/fastapi-0.115.4.dist-info'
autoh> /home/autoh$

Please retry after dnf install python3-setuptools-80.9.0-3.noarch

⁣ Also, along with that code output please retry pip3 show commands and see if it works/paste the outputs if it does not. 

Hi Aditya,

Please find the output, executed from root user and autoh user.

 # /opt/freeware/bin/python3 -c "
> import pkg_resources
> for d in pkg_resources.working_set:
>     try:
>         print(d.project_name, d.version)
>     except Exception as e:
>         print(f'ERROR in package folder: {d.egg_info}')
> "
Traceback (most recent call last):
  File "<string>", line 2, in <module>
ModuleNotFoundError: No module named 'pkg_resources'

autoh> /home/autoh$/opt/freeware/bin/python3 -c "
> import pkg_resources
> for d in pkg_resources.working_set:
>     try:
>         print(d.project_name, d.version)
>     except Exception as e:
>         print(f'ERROR in package folder: {d.egg_info}')
> "
Traceback (most recent call last):
  File "<string>", line 2, in <module>
ModuleNotFoundError: No module named 'pkg_resources'

Regards,

Ramkumar

There is something corrupted in the LPAR, with user autoh. We need to remove that. Not sure what package. That output will tell.

Hi Ram,

python3 -c "
import pkg_resources
for d in pkg_resources.working_set:
    try:
        print(d.project_name, d.version)
    except Exception as e:
        print(f'ERROR in package folder: {d.egg_info}')
"

What is the output of this?

Hi Aditya,

We could see it installed now but below commands output shows some error. please assist

 # /opt/freeware/bin/python3 -m pip install fastapi==0.115.4 uvicorn --no-deps
Collecting fastapi==0.115.4
  Downloading fastapi-0.115.4-py3-none-any.whl.metadata (27 kB)
Collecting uvicorn
  Downloading uvicorn-0.52.4-py3-none-any.whl.metadata (6.6 kB)
Downloading fastapi-0.115.4-py3-none-any.whl (94 kB)
Downloading uvicorn-0.52.4-py3-none-any.whl (79 kB)
Installing collected packages: uvicorn, fastapi
Successfully installed fastapi-0.115.4 uvicorn-0.52.4
WARNING: Running pip as the 'root' user can result in broken permissions and conflicting behaviour with the system package manager, possibly rendering your system unusable. It is recommended to use a virtual environment instead: https://pip.pypa.io/warnings/venv. Use the --root-user-action option if you know what you are doing and want to suppress this warning.
root@oldtut004:/ # Read from remote host oldtut004: Connection reset by peer
Connection to oldtut004 closed.
client_loop: send disconnect: Broken pipe
$

autoh> /home/autoh$pip3 show fastapi
ERROR: Exception:
Traceback (most recent call last):
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/cli/base_command.py", line 107, in _run_wrapper
    status = _inner_run()
             ^^^^^^^^^^^^
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/cli/base_command.py", line 98, in _inner_run
    return self.run(options, args)
           ^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/commands/show.py", line 57, in run
    if not print_results(
           ^^^^^^^^^^^^^^
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/commands/show.py", line 192, in print_results
    metadata_version_tuple = tuple(map(int, dist.metadata_version.split(".")))
                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
ValueError: invalid literal for int() with base 10: ''

autoh> /home/autoh$pip3 show uvicorn
ERROR: Exception:
Traceback (most recent call last):
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/cli/base_command.py", line 107, in _run_wrapper
    status = _inner_run()
             ^^^^^^^^^^^^
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/cli/base_command.py", line 98, in _inner_run
    return self.run(options, args)
           ^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/commands/show.py", line 57, in run
    if not print_results(
           ^^^^^^^^^^^^^^
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/commands/show.py", line 192, in print_results
    metadata_version_tuple = tuple(map(int, dist.metadata_version.split(".")))
                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
ValueError: invalid literal for int() with base 10: ''

Regards,

Ramkumar

Hi,

python is still preferring the cached maturin and pydantic_core possibly because the pyproject.toml files have got updated. 

Please run /opt/freeware/bin/python3 -m pip cache purge

This will clean the cache and then run
dnf install python3-pydantic*
dnf install python3-maturin
export CC="gcc -maix64"
/opt/freeware/bin/python3 -m pip install fastapi==0.115.4 uvicorn --no-deps


Hope this works. If not, paste me the output.

Hi Aditya,

Thanks for your quick support, our use case is to implement API for one of the customer.

I tried the same after installed  maturin python3-pydantic-core packages, but still same issue. please assist.

Regards,

Ramkumar

Hi Ram,

Pydantic core has a problem in AIX for which compiler team is working on the same.

What I did in my LPAR is first install maturin and pydantic_core using dnf.

dnf install maturin python3-pydantic-core

After that you try manually like below. It will install. Please see my LPAR output below. Let me know if there are further issues. We'll help. Also, what is your use case for the same?
python3 -m pip install fastapi uvicorn


Installing collected packages: uvicorn, typing-extensions, annotated-types, typing-inspection, starlette, pydantic, fastapi
  WARNING: The script uvicorn is installed in '//cust_install/opt/freeware/bin' which is not on PATH.
  Consider adding this directory to PATH or, if you prefer to suppress this warning, use --no-warn-script-location.
  Attempting uninstall: typing-extensions
    Found existing installation: typing_extensions 4.12.2
    Uninstalling typing_extensions-4.12.2:
      Successfully uninstalled typing_extensions-4.12.2
   ---------------------------------- ----- 6/7 [fastapi]  WARNING: The script fastapi is installed in '//cust_install/opt/freeware/bin' which is not on PATH.
  Consider adding this directory to PATH or, if you prefer to suppress this warning, use --no-warn-script-location.
ERROR: pip's dependency resolver does not currently take into account all the packages that are installed. This behaviour is the source of the following dependency conflicts.
pyopenssl 25.1.0 requires cryptography<46,>=41.0.5, but you have cryptography 48.0.0 which is incompatible.
Successfully installed annotated-types-0.8.0 fastapi-0.141.1 pydantic-2.13.4 starlette-1.6.0 typing-extensions-4.16.0 typing-inspection-0.4.4 uvicorn-0.52.4

Hi Aditya,

Changed the permissions and executed again. Please find the output below.

autoh> /home/autoh$/opt/freeware/bin/pip3 show fastapi
Name: fastapi
Version: None
Summary:
Home-page:
Author:
Author-email:
License:
Location: /opt/freeware/lib/python3.12/site-packages
Requires:
Required-by:
autoh> /home/autoh$

autoh> /home/autoh$/opt/freeware/bin/python3 -c "^Jimport pkg_resources^Jfor d in pkg_resources.working_set:^J    try:^J        print(d.proje>
<string>:2: UserWarning: pkg_resources is deprecated as an API. See https://setuptools.pypa.io/en/latest/pkg_resources.html. The pkg_resources package is slated for removal as early as 2025-11-30. Refrain from using this package or pin to Setuptools<81.
Traceback (most recent call last):
  File "<string>", line 2, in <module>
  File "/opt/freeware/lib/python3.12/site-packages/pkg_resources/__init__.py", line 3660, in <module>
    @_call_aside
     ^^^^^^^^^^^
  File "/opt/freeware/lib/python3.12/site-packages/pkg_resources/__init__.py", line 3644, in _call_aside
    f(*args, **kwargs)
  File "/opt/freeware/lib/python3.12/site-packages/pkg_resources/__init__.py", line 3673, in _initialize_master_working_set
    working_set = _declare_state('object', 'working_set', WorkingSet._build_master())
                                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/freeware/lib/python3.12/site-packages/pkg_resources/__init__.py", line 644, in _build_master
    ws = cls()
         ^^^^^
  File "/opt/freeware/lib/python3.12/site-packages/pkg_resources/__init__.py", line 637, in __init__
    self.add_entry(entry)
  File "/opt/freeware/lib/python3.12/site-packages/pkg_resources/__init__.py", line 693, in add_entry
    for dist in find_distributions(entry, True):
                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/freeware/lib/python3.12/site-packages/pkg_resources/__init__.py", line 2338, in find_on_path
    yield from factory(fullpath)
  File "/opt/freeware/lib/python3.12/site-packages/pkg_resources/__init__.py", line 2395, in distributions_from_metadata
    if len(os.listdir(path)) == 0:
           ^^^^^^^^^^^^^^^^
PermissionError: [Errno 13] Permission denied: '/opt/freeware/lib/python3.12/site-packages/fastapi-0.115.4.dist-info'

autoh> /home/autoh$ls -ld /opt/freeware/lib/python3.12/site-packages/fastapi-0.115.4.dist-info
drwx---r-x    3 root     system          256 Aug 24 04:50 /opt/freeware/lib/python3.12/site-packages/fastapi-0.115.4.dist-info
autoh> /home/autoh$

chmod -R o+rx /opt/freeware/lib/python3.12/site-packages/fastapi-0.115.4.dist-info

Can you fix the permissions to this and then retry.

Also give me output of
pip3 show fastapi

Hi Adithya,

Please find the output below:

autoh> /home/autoh$/opt/freeware/bin/pip3 show
WARNING: ERROR: Please provide a package name or names.

autoh> /home/autoh$
autoh> /home/autoh$/opt/freeware/bin/python3 -c "
> import pkg_resources
> for d in pkg_resources.working_set:
>     try:
>         print(d.project_name, d.version)
>     except Exception as e:
>         print(f'ERROR in package folder: {d.egg_info}')
> "
<string>:2: UserWarning: pkg_resources is deprecated as an API. See https://setuptools.pypa.io/en/latest/pkg_resources.html. The pkg_resources package is slated for removal as early as 2025-11-30. Refrain from using this package or pin to Setuptools<81.
Traceback (most recent call last):
  File "<string>", line 2, in <module>
  File "/opt/freeware/lib/python3.12/site-packages/pkg_resources/__init__.py", line 3660, in <module>
    @_call_aside
     ^^^^^^^^^^^
  File "/opt/freeware/lib/python3.12/site-packages/pkg_resources/__init__.py", line 3644, in _call_aside
    f(*args, **kwargs)
  File "/opt/freeware/lib/python3.12/site-packages/pkg_resources/__init__.py", line 3673, in _initialize_master_working_set
    working_set = _declare_state('object', 'working_set', WorkingSet._build_master())
                                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/freeware/lib/python3.12/site-packages/pkg_resources/__init__.py", line 644, in _build_master
    ws = cls()
         ^^^^^
  File "/opt/freeware/lib/python3.12/site-packages/pkg_resources/__init__.py", line 637, in __init__
    self.add_entry(entry)
  File "/opt/freeware/lib/python3.12/site-packages/pkg_resources/__init__.py", line 693, in add_entry
    for dist in find_distributions(entry, True):
                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/freeware/lib/python3.12/site-packages/pkg_resources/__init__.py", line 2338, in find_on_path
    yield from factory(fullpath)
  File "/opt/freeware/lib/python3.12/site-packages/pkg_resources/__init__.py", line 2395, in distributions_from_metadata
    if len(os.listdir(path)) == 0:
           ^^^^^^^^^^^^^^^^
PermissionError: [Errno 13] Permission denied: '/opt/freeware/lib/python3.12/site-packages/fastapi-0.115.4.dist-info'
autoh> /home/autoh$

Please retry after dnf install python3-setuptools-80.9.0-3.noarch

⁣ Also, along with that code output please retry pip3 show commands and see if it works/paste the outputs if it does not. 

Hi Aditya,

Please find the output, executed from root user and autoh user.

 # /opt/freeware/bin/python3 -c "
> import pkg_resources
> for d in pkg_resources.working_set:
>     try:
>         print(d.project_name, d.version)
>     except Exception as e:
>         print(f'ERROR in package folder: {d.egg_info}')
> "
Traceback (most recent call last):
  File "<string>", line 2, in <module>
ModuleNotFoundError: No module named 'pkg_resources'

autoh> /home/autoh$/opt/freeware/bin/python3 -c "
> import pkg_resources
> for d in pkg_resources.working_set:
>     try:
>         print(d.project_name, d.version)
>     except Exception as e:
>         print(f'ERROR in package folder: {d.egg_info}')
> "
Traceback (most recent call last):
  File "<string>", line 2, in <module>
ModuleNotFoundError: No module named 'pkg_resources'

Regards,

Ramkumar

There is something corrupted in the LPAR, with user autoh. We need to remove that. Not sure what package. That output will tell.

Hi Ram,

python3 -c "
import pkg_resources
for d in pkg_resources.working_set:
    try:
        print(d.project_name, d.version)
    except Exception as e:
        print(f'ERROR in package folder: {d.egg_info}')
"

What is the output of this?

Hi Aditya,

We could see it installed now but below commands output shows some error. please assist

 # /opt/freeware/bin/python3 -m pip install fastapi==0.115.4 uvicorn --no-deps
Collecting fastapi==0.115.4
  Downloading fastapi-0.115.4-py3-none-any.whl.metadata (27 kB)
Collecting uvicorn
  Downloading uvicorn-0.52.4-py3-none-any.whl.metadata (6.6 kB)
Downloading fastapi-0.115.4-py3-none-any.whl (94 kB)
Downloading uvicorn-0.52.4-py3-none-any.whl (79 kB)
Installing collected packages: uvicorn, fastapi
Successfully installed fastapi-0.115.4 uvicorn-0.52.4
WARNING: Running pip as the 'root' user can result in broken permissions and conflicting behaviour with the system package manager, possibly rendering your system unusable. It is recommended to use a virtual environment instead: https://pip.pypa.io/warnings/venv. Use the --root-user-action option if you know what you are doing and want to suppress this warning.
root@oldtut004:/ # Read from remote host oldtut004: Connection reset by peer
Connection to oldtut004 closed.
client_loop: send disconnect: Broken pipe
$

autoh> /home/autoh$pip3 show fastapi
ERROR: Exception:
Traceback (most recent call last):
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/cli/base_command.py", line 107, in _run_wrapper
    status = _inner_run()
             ^^^^^^^^^^^^
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/cli/base_command.py", line 98, in _inner_run
    return self.run(options, args)
           ^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/commands/show.py", line 57, in run
    if not print_results(
           ^^^^^^^^^^^^^^
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/commands/show.py", line 192, in print_results
    metadata_version_tuple = tuple(map(int, dist.metadata_version.split(".")))
                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
ValueError: invalid literal for int() with base 10: ''

autoh> /home/autoh$pip3 show uvicorn
ERROR: Exception:
Traceback (most recent call last):
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/cli/base_command.py", line 107, in _run_wrapper
    status = _inner_run()
             ^^^^^^^^^^^^
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/cli/base_command.py", line 98, in _inner_run
    return self.run(options, args)
           ^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/commands/show.py", line 57, in run
    if not print_results(
           ^^^^^^^^^^^^^^
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/commands/show.py", line 192, in print_results
    metadata_version_tuple = tuple(map(int, dist.metadata_version.split(".")))
                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
ValueError: invalid literal for int() with base 10: ''

Regards,

Ramkumar

Hi,

python is still preferring the cached maturin and pydantic_core possibly because the pyproject.toml files have got updated. 

Please run /opt/freeware/bin/python3 -m pip cache purge

This will clean the cache and then run
dnf install python3-pydantic*
dnf install python3-maturin
export CC="gcc -maix64"
/opt/freeware/bin/python3 -m pip install fastapi==0.115.4 uvicorn --no-deps


Hope this works. If not, paste me the output.

Hi Aditya,

Thanks for your quick support, our use case is to implement API for one of the customer.

I tried the same after installed  maturin python3-pydantic-core packages, but still same issue. please assist.

Regards,

Ramkumar

Hi Ram,

Pydantic core has a problem in AIX for which compiler team is working on the same.

What I did in my LPAR is first install maturin and pydantic_core using dnf.

dnf install maturin python3-pydantic-core

After that you try manually like below. It will install. Please see my LPAR output below. Let me know if there are further issues. We'll help. Also, what is your use case for the same?
python3 -m pip install fastapi uvicorn


Installing collected packages: uvicorn, typing-extensions, annotated-types, typing-inspection, starlette, pydantic, fastapi
  WARNING: The script uvicorn is installed in '//cust_install/opt/freeware/bin' which is not on PATH.
  Consider adding this directory to PATH or, if you prefer to suppress this warning, use --no-warn-script-location.
  Attempting uninstall: typing-extensions
    Found existing installation: typing_extensions 4.12.2
    Uninstalling typing_extensions-4.12.2:
      Successfully uninstalled typing_extensions-4.12.2
   ---------------------------------- ----- 6/7 [fastapi]  WARNING: The script fastapi is installed in '//cust_install/opt/freeware/bin' which is not on PATH.
  Consider adding this directory to PATH or, if you prefer to suppress this warning, use --no-warn-script-location.
ERROR: pip's dependency resolver does not currently take into account all the packages that are installed. This behaviour is the source of the following dependency conflicts.
pyopenssl 25.1.0 requires cryptography<46,>=41.0.5, but you have cryptography 48.0.0 which is incompatible.
Successfully installed annotated-types-0.8.0 fastapi-0.141.1 pydantic-2.13.4 starlette-1.6.0 typing-extensions-4.16.0 typing-inspection-0.4.4 uvicorn-0.52.4

I think the pip3 show output is fine. Is your fastapi working?

Hi Aditya,

Changed the permissions and executed again. Please find the output below.

autoh> /home/autoh$/opt/freeware/bin/pip3 show fastapi
Name: fastapi
Version: None
Summary:
Home-page:
Author:
Author-email:
License:
Location: /opt/freeware/lib/python3.12/site-packages
Requires:
Required-by:
autoh> /home/autoh$

autoh> /home/autoh$/opt/freeware/bin/python3 -c "^Jimport pkg_resources^Jfor d in pkg_resources.working_set:^J    try:^J        print(d.proje>
<string>:2: UserWarning: pkg_resources is deprecated as an API. See https://setuptools.pypa.io/en/latest/pkg_resources.html. The pkg_resources package is slated for removal as early as 2025-11-30. Refrain from using this package or pin to Setuptools<81.
Traceback (most recent call last):
  File "<string>", line 2, in <module>
  File "/opt/freeware/lib/python3.12/site-packages/pkg_resources/__init__.py", line 3660, in <module>
    @_call_aside
     ^^^^^^^^^^^
  File "/opt/freeware/lib/python3.12/site-packages/pkg_resources/__init__.py", line 3644, in _call_aside
    f(*args, **kwargs)
  File "/opt/freeware/lib/python3.12/site-packages/pkg_resources/__init__.py", line 3673, in _initialize_master_working_set
    working_set = _declare_state('object', 'working_set', WorkingSet._build_master())
                                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/freeware/lib/python3.12/site-packages/pkg_resources/__init__.py", line 644, in _build_master
    ws = cls()
         ^^^^^
  File "/opt/freeware/lib/python3.12/site-packages/pkg_resources/__init__.py", line 637, in __init__
    self.add_entry(entry)
  File "/opt/freeware/lib/python3.12/site-packages/pkg_resources/__init__.py", line 693, in add_entry
    for dist in find_distributions(entry, True):
                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/freeware/lib/python3.12/site-packages/pkg_resources/__init__.py", line 2338, in find_on_path
    yield from factory(fullpath)
  File "/opt/freeware/lib/python3.12/site-packages/pkg_resources/__init__.py", line 2395, in distributions_from_metadata
    if len(os.listdir(path)) == 0:
           ^^^^^^^^^^^^^^^^
PermissionError: [Errno 13] Permission denied: '/opt/freeware/lib/python3.12/site-packages/fastapi-0.115.4.dist-info'

autoh> /home/autoh$ls -ld /opt/freeware/lib/python3.12/site-packages/fastapi-0.115.4.dist-info
drwx---r-x    3 root     system          256 Aug 24 04:50 /opt/freeware/lib/python3.12/site-packages/fastapi-0.115.4.dist-info
autoh> /home/autoh$

chmod -R o+rx /opt/freeware/lib/python3.12/site-packages/fastapi-0.115.4.dist-info

Can you fix the permissions to this and then retry.

Also give me output of
pip3 show fastapi

Hi Adithya,

Please find the output below:

autoh> /home/autoh$/opt/freeware/bin/pip3 show
WARNING: ERROR: Please provide a package name or names.

autoh> /home/autoh$
autoh> /home/autoh$/opt/freeware/bin/python3 -c "
> import pkg_resources
> for d in pkg_resources.working_set:
>     try:
>         print(d.project_name, d.version)
>     except Exception as e:
>         print(f'ERROR in package folder: {d.egg_info}')
> "
<string>:2: UserWarning: pkg_resources is deprecated as an API. See https://setuptools.pypa.io/en/latest/pkg_resources.html. The pkg_resources package is slated for removal as early as 2025-11-30. Refrain from using this package or pin to Setuptools<81.
Traceback (most recent call last):
  File "<string>", line 2, in <module>
  File "/opt/freeware/lib/python3.12/site-packages/pkg_resources/__init__.py", line 3660, in <module>
    @_call_aside
     ^^^^^^^^^^^
  File "/opt/freeware/lib/python3.12/site-packages/pkg_resources/__init__.py", line 3644, in _call_aside
    f(*args, **kwargs)
  File "/opt/freeware/lib/python3.12/site-packages/pkg_resources/__init__.py", line 3673, in _initialize_master_working_set
    working_set = _declare_state('object', 'working_set', WorkingSet._build_master())
                                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/freeware/lib/python3.12/site-packages/pkg_resources/__init__.py", line 644, in _build_master
    ws = cls()
         ^^^^^
  File "/opt/freeware/lib/python3.12/site-packages/pkg_resources/__init__.py", line 637, in __init__
    self.add_entry(entry)
  File "/opt/freeware/lib/python3.12/site-packages/pkg_resources/__init__.py", line 693, in add_entry
    for dist in find_distributions(entry, True):
                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/freeware/lib/python3.12/site-packages/pkg_resources/__init__.py", line 2338, in find_on_path
    yield from factory(fullpath)
  File "/opt/freeware/lib/python3.12/site-packages/pkg_resources/__init__.py", line 2395, in distributions_from_metadata
    if len(os.listdir(path)) == 0:
           ^^^^^^^^^^^^^^^^
PermissionError: [Errno 13] Permission denied: '/opt/freeware/lib/python3.12/site-packages/fastapi-0.115.4.dist-info'
autoh> /home/autoh$

Please retry after dnf install python3-setuptools-80.9.0-3.noarch

⁣ Also, along with that code output please retry pip3 show commands and see if it works/paste the outputs if it does not. 

Hi Aditya,

Please find the output, executed from root user and autoh user.

 # /opt/freeware/bin/python3 -c "
> import pkg_resources
> for d in pkg_resources.working_set:
>     try:
>         print(d.project_name, d.version)
>     except Exception as e:
>         print(f'ERROR in package folder: {d.egg_info}')
> "
Traceback (most recent call last):
  File "<string>", line 2, in <module>
ModuleNotFoundError: No module named 'pkg_resources'

autoh> /home/autoh$/opt/freeware/bin/python3 -c "
> import pkg_resources
> for d in pkg_resources.working_set:
>     try:
>         print(d.project_name, d.version)
>     except Exception as e:
>         print(f'ERROR in package folder: {d.egg_info}')
> "
Traceback (most recent call last):
  File "<string>", line 2, in <module>
ModuleNotFoundError: No module named 'pkg_resources'

Regards,

Ramkumar

There is something corrupted in the LPAR, with user autoh. We need to remove that. Not sure what package. That output will tell.

Hi Ram,

python3 -c "
import pkg_resources
for d in pkg_resources.working_set:
    try:
        print(d.project_name, d.version)
    except Exception as e:
        print(f'ERROR in package folder: {d.egg_info}')
"

What is the output of this?

Hi Aditya,

We could see it installed now but below commands output shows some error. please assist

 # /opt/freeware/bin/python3 -m pip install fastapi==0.115.4 uvicorn --no-deps
Collecting fastapi==0.115.4
  Downloading fastapi-0.115.4-py3-none-any.whl.metadata (27 kB)
Collecting uvicorn
  Downloading uvicorn-0.52.4-py3-none-any.whl.metadata (6.6 kB)
Downloading fastapi-0.115.4-py3-none-any.whl (94 kB)
Downloading uvicorn-0.52.4-py3-none-any.whl (79 kB)
Installing collected packages: uvicorn, fastapi
Successfully installed fastapi-0.115.4 uvicorn-0.52.4
WARNING: Running pip as the 'root' user can result in broken permissions and conflicting behaviour with the system package manager, possibly rendering your system unusable. It is recommended to use a virtual environment instead: https://pip.pypa.io/warnings/venv. Use the --root-user-action option if you know what you are doing and want to suppress this warning.
root@oldtut004:/ # Read from remote host oldtut004: Connection reset by peer
Connection to oldtut004 closed.
client_loop: send disconnect: Broken pipe
$

autoh> /home/autoh$pip3 show fastapi
ERROR: Exception:
Traceback (most recent call last):
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/cli/base_command.py", line 107, in _run_wrapper
    status = _inner_run()
             ^^^^^^^^^^^^
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/cli/base_command.py", line 98, in _inner_run
    return self.run(options, args)
           ^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/commands/show.py", line 57, in run
    if not print_results(
           ^^^^^^^^^^^^^^
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/commands/show.py", line 192, in print_results
    metadata_version_tuple = tuple(map(int, dist.metadata_version.split(".")))
                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
ValueError: invalid literal for int() with base 10: ''

autoh> /home/autoh$pip3 show uvicorn
ERROR: Exception:
Traceback (most recent call last):
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/cli/base_command.py", line 107, in _run_wrapper
    status = _inner_run()
             ^^^^^^^^^^^^
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/cli/base_command.py", line 98, in _inner_run
    return self.run(options, args)
           ^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/commands/show.py", line 57, in run
    if not print_results(
           ^^^^^^^^^^^^^^
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/commands/show.py", line 192, in print_results
    metadata_version_tuple = tuple(map(int, dist.metadata_version.split(".")))
                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
ValueError: invalid literal for int() with base 10: ''

Regards,

Ramkumar

Hi,

python is still preferring the cached maturin and pydantic_core possibly because the pyproject.toml files have got updated. 

Please run /opt/freeware/bin/python3 -m pip cache purge

This will clean the cache and then run
dnf install python3-pydantic*
dnf install python3-maturin
export CC="gcc -maix64"
/opt/freeware/bin/python3 -m pip install fastapi==0.115.4 uvicorn --no-deps


Hope this works. If not, paste me the output.

Hi Aditya,

Thanks for your quick support, our use case is to implement API for one of the customer.

I tried the same after installed  maturin python3-pydantic-core packages, but still same issue. please assist.

Regards,

Ramkumar

Hi Ram,

Pydantic core has a problem in AIX for which compiler team is working on the same.

What I did in my LPAR is first install maturin and pydantic_core using dnf.

dnf install maturin python3-pydantic-core

After that you try manually like below. It will install. Please see my LPAR output below. Let me know if there are further issues. We'll help. Also, what is your use case for the same?
python3 -m pip install fastapi uvicorn


Installing collected packages: uvicorn, typing-extensions, annotated-types, typing-inspection, starlette, pydantic, fastapi
  WARNING: The script uvicorn is installed in '//cust_install/opt/freeware/bin' which is not on PATH.
  Consider adding this directory to PATH or, if you prefer to suppress this warning, use --no-warn-script-location.
  Attempting uninstall: typing-extensions
    Found existing installation: typing_extensions 4.12.2
    Uninstalling typing_extensions-4.12.2:
      Successfully uninstalled typing_extensions-4.12.2
   ---------------------------------- ----- 6/7 [fastapi]  WARNING: The script fastapi is installed in '//cust_install/opt/freeware/bin' which is not on PATH.
  Consider adding this directory to PATH or, if you prefer to suppress this warning, use --no-warn-script-location.
ERROR: pip's dependency resolver does not currently take into account all the packages that are installed. This behaviour is the source of the following dependency conflicts.
pyopenssl 25.1.0 requires cryptography<46,>=41.0.5, but you have cryptography 48.0.0 which is incompatible.
Successfully installed annotated-types-0.8.0 fastapi-0.141.1 pydantic-2.13.4 starlette-1.6.0 typing-extensions-4.16.0 typing-inspection-0.4.4 uvicorn-0.52.4

You can fix the other issue using chmod -R 755 /opt/freeware/lib/python3.12/site-packages/fastapi-0.115.4.dist-info

I think the pip3 show output is fine. Is your fastapi working?

Hi Aditya,

Changed the permissions and executed again. Please find the output below.

autoh> /home/autoh$/opt/freeware/bin/pip3 show fastapi
Name: fastapi
Version: None
Summary:
Home-page:
Author:
Author-email:
License:
Location: /opt/freeware/lib/python3.12/site-packages
Requires:
Required-by:
autoh> /home/autoh$

autoh> /home/autoh$/opt/freeware/bin/python3 -c "^Jimport pkg_resources^Jfor d in pkg_resources.working_set:^J    try:^J        print(d.proje>
<string>:2: UserWarning: pkg_resources is deprecated as an API. See https://setuptools.pypa.io/en/latest/pkg_resources.html. The pkg_resources package is slated for removal as early as 2025-11-30. Refrain from using this package or pin to Setuptools<81.
Traceback (most recent call last):
  File "<string>", line 2, in <module>
  File "/opt/freeware/lib/python3.12/site-packages/pkg_resources/__init__.py", line 3660, in <module>
    @_call_aside
     ^^^^^^^^^^^
  File "/opt/freeware/lib/python3.12/site-packages/pkg_resources/__init__.py", line 3644, in _call_aside
    f(*args, **kwargs)
  File "/opt/freeware/lib/python3.12/site-packages/pkg_resources/__init__.py", line 3673, in _initialize_master_working_set
    working_set = _declare_state('object', 'working_set', WorkingSet._build_master())
                                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/freeware/lib/python3.12/site-packages/pkg_resources/__init__.py", line 644, in _build_master
    ws = cls()
         ^^^^^
  File "/opt/freeware/lib/python3.12/site-packages/pkg_resources/__init__.py", line 637, in __init__
    self.add_entry(entry)
  File "/opt/freeware/lib/python3.12/site-packages/pkg_resources/__init__.py", line 693, in add_entry
    for dist in find_distributions(entry, True):
                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/freeware/lib/python3.12/site-packages/pkg_resources/__init__.py", line 2338, in find_on_path
    yield from factory(fullpath)
  File "/opt/freeware/lib/python3.12/site-packages/pkg_resources/__init__.py", line 2395, in distributions_from_metadata
    if len(os.listdir(path)) == 0:
           ^^^^^^^^^^^^^^^^
PermissionError: [Errno 13] Permission denied: '/opt/freeware/lib/python3.12/site-packages/fastapi-0.115.4.dist-info'

autoh> /home/autoh$ls -ld /opt/freeware/lib/python3.12/site-packages/fastapi-0.115.4.dist-info
drwx---r-x    3 root     system          256 Aug 24 04:50 /opt/freeware/lib/python3.12/site-packages/fastapi-0.115.4.dist-info
autoh> /home/autoh$

chmod -R o+rx /opt/freeware/lib/python3.12/site-packages/fastapi-0.115.4.dist-info

Can you fix the permissions to this and then retry.

Also give me output of
pip3 show fastapi

Hi Adithya,

Please find the output below:

autoh> /home/autoh$/opt/freeware/bin/pip3 show
WARNING: ERROR: Please provide a package name or names.

autoh> /home/autoh$
autoh> /home/autoh$/opt/freeware/bin/python3 -c "
> import pkg_resources
> for d in pkg_resources.working_set:
>     try:
>         print(d.project_name, d.version)
>     except Exception as e:
>         print(f'ERROR in package folder: {d.egg_info}')
> "
<string>:2: UserWarning: pkg_resources is deprecated as an API. See https://setuptools.pypa.io/en/latest/pkg_resources.html. The pkg_resources package is slated for removal as early as 2025-11-30. Refrain from using this package or pin to Setuptools<81.
Traceback (most recent call last):
  File "<string>", line 2, in <module>
  File "/opt/freeware/lib/python3.12/site-packages/pkg_resources/__init__.py", line 3660, in <module>
    @_call_aside
     ^^^^^^^^^^^
  File "/opt/freeware/lib/python3.12/site-packages/pkg_resources/__init__.py", line 3644, in _call_aside
    f(*args, **kwargs)
  File "/opt/freeware/lib/python3.12/site-packages/pkg_resources/__init__.py", line 3673, in _initialize_master_working_set
    working_set = _declare_state('object', 'working_set', WorkingSet._build_master())
                                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/freeware/lib/python3.12/site-packages/pkg_resources/__init__.py", line 644, in _build_master
    ws = cls()
         ^^^^^
  File "/opt/freeware/lib/python3.12/site-packages/pkg_resources/__init__.py", line 637, in __init__
    self.add_entry(entry)
  File "/opt/freeware/lib/python3.12/site-packages/pkg_resources/__init__.py", line 693, in add_entry
    for dist in find_distributions(entry, True):
                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/freeware/lib/python3.12/site-packages/pkg_resources/__init__.py", line 2338, in find_on_path
    yield from factory(fullpath)
  File "/opt/freeware/lib/python3.12/site-packages/pkg_resources/__init__.py", line 2395, in distributions_from_metadata
    if len(os.listdir(path)) == 0:
           ^^^^^^^^^^^^^^^^
PermissionError: [Errno 13] Permission denied: '/opt/freeware/lib/python3.12/site-packages/fastapi-0.115.4.dist-info'
autoh> /home/autoh$

Please retry after dnf install python3-setuptools-80.9.0-3.noarch

⁣ Also, along with that code output please retry pip3 show commands and see if it works/paste the outputs if it does not. 

Hi Aditya,

Please find the output, executed from root user and autoh user.

 # /opt/freeware/bin/python3 -c "
> import pkg_resources
> for d in pkg_resources.working_set:
>     try:
>         print(d.project_name, d.version)
>     except Exception as e:
>         print(f'ERROR in package folder: {d.egg_info}')
> "
Traceback (most recent call last):
  File "<string>", line 2, in <module>
ModuleNotFoundError: No module named 'pkg_resources'

autoh> /home/autoh$/opt/freeware/bin/python3 -c "
> import pkg_resources
> for d in pkg_resources.working_set:
>     try:
>         print(d.project_name, d.version)
>     except Exception as e:
>         print(f'ERROR in package folder: {d.egg_info}')
> "
Traceback (most recent call last):
  File "<string>", line 2, in <module>
ModuleNotFoundError: No module named 'pkg_resources'

Regards,

Ramkumar

There is something corrupted in the LPAR, with user autoh. We need to remove that. Not sure what package. That output will tell.

Hi Ram,

python3 -c "
import pkg_resources
for d in pkg_resources.working_set:
    try:
        print(d.project_name, d.version)
    except Exception as e:
        print(f'ERROR in package folder: {d.egg_info}')
"

What is the output of this?

Hi Aditya,

We could see it installed now but below commands output shows some error. please assist

 # /opt/freeware/bin/python3 -m pip install fastapi==0.115.4 uvicorn --no-deps
Collecting fastapi==0.115.4
  Downloading fastapi-0.115.4-py3-none-any.whl.metadata (27 kB)
Collecting uvicorn
  Downloading uvicorn-0.52.4-py3-none-any.whl.metadata (6.6 kB)
Downloading fastapi-0.115.4-py3-none-any.whl (94 kB)
Downloading uvicorn-0.52.4-py3-none-any.whl (79 kB)
Installing collected packages: uvicorn, fastapi
Successfully installed fastapi-0.115.4 uvicorn-0.52.4
WARNING: Running pip as the 'root' user can result in broken permissions and conflicting behaviour with the system package manager, possibly rendering your system unusable. It is recommended to use a virtual environment instead: https://pip.pypa.io/warnings/venv. Use the --root-user-action option if you know what you are doing and want to suppress this warning.
root@oldtut004:/ # Read from remote host oldtut004: Connection reset by peer
Connection to oldtut004 closed.
client_loop: send disconnect: Broken pipe
$

autoh> /home/autoh$pip3 show fastapi
ERROR: Exception:
Traceback (most recent call last):
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/cli/base_command.py", line 107, in _run_wrapper
    status = _inner_run()
             ^^^^^^^^^^^^
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/cli/base_command.py", line 98, in _inner_run
    return self.run(options, args)
           ^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/commands/show.py", line 57, in run
    if not print_results(
           ^^^^^^^^^^^^^^
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/commands/show.py", line 192, in print_results
    metadata_version_tuple = tuple(map(int, dist.metadata_version.split(".")))
                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
ValueError: invalid literal for int() with base 10: ''

autoh> /home/autoh$pip3 show uvicorn
ERROR: Exception:
Traceback (most recent call last):
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/cli/base_command.py", line 107, in _run_wrapper
    status = _inner_run()
             ^^^^^^^^^^^^
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/cli/base_command.py", line 98, in _inner_run
    return self.run(options, args)
           ^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/commands/show.py", line 57, in run
    if not print_results(
           ^^^^^^^^^^^^^^
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/commands/show.py", line 192, in print_results
    metadata_version_tuple = tuple(map(int, dist.metadata_version.split(".")))
                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
ValueError: invalid literal for int() with base 10: ''

Regards,

Ramkumar

Hi,

python is still preferring the cached maturin and pydantic_core possibly because the pyproject.toml files have got updated. 

Please run /opt/freeware/bin/python3 -m pip cache purge

This will clean the cache and then run
dnf install python3-pydantic*
dnf install python3-maturin
export CC="gcc -maix64"
/opt/freeware/bin/python3 -m pip install fastapi==0.115.4 uvicorn --no-deps


Hope this works. If not, paste me the output.

Hi Aditya,

Thanks for your quick support, our use case is to implement API for one of the customer.

I tried the same after installed  maturin python3-pydantic-core packages, but still same issue. please assist.

Regards,

Ramkumar

Hi Ram,

Pydantic core has a problem in AIX for which compiler team is working on the same.

What I did in my LPAR is first install maturin and pydantic_core using dnf.

dnf install maturin python3-pydantic-core

After that you try manually like below. It will install. Please see my LPAR output below. Let me know if there are further issues. We'll help. Also, what is your use case for the same?
python3 -m pip install fastapi uvicorn


Installing collected packages: uvicorn, typing-extensions, annotated-types, typing-inspection, starlette, pydantic, fastapi
  WARNING: The script uvicorn is installed in '//cust_install/opt/freeware/bin' which is not on PATH.
  Consider adding this directory to PATH or, if you prefer to suppress this warning, use --no-warn-script-location.
  Attempting uninstall: typing-extensions
    Found existing installation: typing_extensions 4.12.2
    Uninstalling typing_extensions-4.12.2:
      Successfully uninstalled typing_extensions-4.12.2
   ---------------------------------- ----- 6/7 [fastapi]  WARNING: The script fastapi is installed in '//cust_install/opt/freeware/bin' which is not on PATH.
  Consider adding this directory to PATH or, if you prefer to suppress this warning, use --no-warn-script-location.
ERROR: pip's dependency resolver does not currently take into account all the packages that are installed. This behaviour is the source of the following dependency conflicts.
pyopenssl 25.1.0 requires cryptography<46,>=41.0.5, but you have cryptography 48.0.0 which is incompatible.
Successfully installed annotated-types-0.8.0 fastapi-0.141.1 pydantic-2.13.4 starlette-1.6.0 typing-extensions-4.16.0 typing-inspection-0.4.4 uvicorn-0.52.4

Hi Aditya,

Thanks for your great support, App team conformed that is installed now, but still, they get some dependencies error pasted below.

Hi Ram,

FastAPI and Uvicorn are installed successfully:

fastapi 0.115.4
uvicorn 0.52.4

However, pip3 check reports unresolved dependencies and package compatibility issues:

without these modules fastapi wont work

pydantic

starlette

click

h11

pydantic_core 

autoh> /home/autoh$pip3 check
fastapi 0.115.4 requires pydantic, which is not installed.
fastapi 0.115.4 requires starlette, which is not installed.
uvicorn 0.52.4 requires click, which is not installed.
uvicorn 0.52.4 requires h11, which is not installed.
pydantic-core 2.41.4 has requirement typing-extensions>=4.14.1, but you have typing-extensions 4.14.0.
pydantic_core 2.41.4 is not supported on this platform

facing these errors,

autoh> /home/autoh$/opt/freeware/bin/python3.12 -c "from fastapi import FastAPI; print(FastAPI)"
Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "/opt/freeware/lib/python3.12/site-packages/fastapi/__init__.py", line 5, in <module>
    from starlette import status as status
ModuleNotFoundError: No module named 'starlette'

autoh> /home/autoh$/opt/freeware/bin/python3.12 -c "import uvicorn; print(uvicorn.__version__)"
Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "/opt/freeware/lib/python3.12/site-packages/uvicorn/__init__.py", line 2, in <module>
    from uvicorn.main import Server, main, run
  File "/opt/freeware/lib/python3.12/site-packages/uvicorn/main.py", line 14, in <module>
    import click
ModuleNotFoundError: No module named 'click'

You can fix the other issue using chmod -R 755 /opt/freeware/lib/python3.12/site-packages/fastapi-0.115.4.dist-info

I think the pip3 show output is fine. Is your fastapi working?

Hi Aditya,

Changed the permissions and executed again. Please find the output below.

autoh> /home/autoh$/opt/freeware/bin/pip3 show fastapi
Name: fastapi
Version: None
Summary:
Home-page:
Author:
Author-email:
License:
Location: /opt/freeware/lib/python3.12/site-packages
Requires:
Required-by:
autoh> /home/autoh$

autoh> /home/autoh$/opt/freeware/bin/python3 -c "^Jimport pkg_resources^Jfor d in pkg_resources.working_set:^J    try:^J        print(d.proje>
<string>:2: UserWarning: pkg_resources is deprecated as an API. See https://setuptools.pypa.io/en/latest/pkg_resources.html. The pkg_resources package is slated for removal as early as 2025-11-30. Refrain from using this package or pin to Setuptools<81.
Traceback (most recent call last):
  File "<string>", line 2, in <module>
  File "/opt/freeware/lib/python3.12/site-packages/pkg_resources/__init__.py", line 3660, in <module>
    @_call_aside
     ^^^^^^^^^^^
  File "/opt/freeware/lib/python3.12/site-packages/pkg_resources/__init__.py", line 3644, in _call_aside
    f(*args, **kwargs)
  File "/opt/freeware/lib/python3.12/site-packages/pkg_resources/__init__.py", line 3673, in _initialize_master_working_set
    working_set = _declare_state('object', 'working_set', WorkingSet._build_master())
                                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/freeware/lib/python3.12/site-packages/pkg_resources/__init__.py", line 644, in _build_master
    ws = cls()
         ^^^^^
  File "/opt/freeware/lib/python3.12/site-packages/pkg_resources/__init__.py", line 637, in __init__
    self.add_entry(entry)
  File "/opt/freeware/lib/python3.12/site-packages/pkg_resources/__init__.py", line 693, in add_entry
    for dist in find_distributions(entry, True):
                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/freeware/lib/python3.12/site-packages/pkg_resources/__init__.py", line 2338, in find_on_path
    yield from factory(fullpath)
  File "/opt/freeware/lib/python3.12/site-packages/pkg_resources/__init__.py", line 2395, in distributions_from_metadata
    if len(os.listdir(path)) == 0:
           ^^^^^^^^^^^^^^^^
PermissionError: [Errno 13] Permission denied: '/opt/freeware/lib/python3.12/site-packages/fastapi-0.115.4.dist-info'

autoh> /home/autoh$ls -ld /opt/freeware/lib/python3.12/site-packages/fastapi-0.115.4.dist-info
drwx---r-x    3 root     system          256 Aug 24 04:50 /opt/freeware/lib/python3.12/site-packages/fastapi-0.115.4.dist-info
autoh> /home/autoh$

chmod -R o+rx /opt/freeware/lib/python3.12/site-packages/fastapi-0.115.4.dist-info

Can you fix the permissions to this and then retry.

Also give me output of
pip3 show fastapi

Hi Adithya,

Please find the output below:

autoh> /home/autoh$/opt/freeware/bin/pip3 show
WARNING: ERROR: Please provide a package name or names.

autoh> /home/autoh$
autoh> /home/autoh$/opt/freeware/bin/python3 -c "
> import pkg_resources
> for d in pkg_resources.working_set:
>     try:
>         print(d.project_name, d.version)
>     except Exception as e:
>         print(f'ERROR in package folder: {d.egg_info}')
> "
<string>:2: UserWarning: pkg_resources is deprecated as an API. See https://setuptools.pypa.io/en/latest/pkg_resources.html. The pkg_resources package is slated for removal as early as 2025-11-30. Refrain from using this package or pin to Setuptools<81.
Traceback (most recent call last):
  File "<string>", line 2, in <module>
  File "/opt/freeware/lib/python3.12/site-packages/pkg_resources/__init__.py", line 3660, in <module>
    @_call_aside
     ^^^^^^^^^^^
  File "/opt/freeware/lib/python3.12/site-packages/pkg_resources/__init__.py", line 3644, in _call_aside
    f(*args, **kwargs)
  File "/opt/freeware/lib/python3.12/site-packages/pkg_resources/__init__.py", line 3673, in _initialize_master_working_set
    working_set = _declare_state('object', 'working_set', WorkingSet._build_master())
                                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/freeware/lib/python3.12/site-packages/pkg_resources/__init__.py", line 644, in _build_master
    ws = cls()
         ^^^^^
  File "/opt/freeware/lib/python3.12/site-packages/pkg_resources/__init__.py", line 637, in __init__
    self.add_entry(entry)
  File "/opt/freeware/lib/python3.12/site-packages/pkg_resources/__init__.py", line 693, in add_entry
    for dist in find_distributions(entry, True):
                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/freeware/lib/python3.12/site-packages/pkg_resources/__init__.py", line 2338, in find_on_path
    yield from factory(fullpath)
  File "/opt/freeware/lib/python3.12/site-packages/pkg_resources/__init__.py", line 2395, in distributions_from_metadata
    if len(os.listdir(path)) == 0:
           ^^^^^^^^^^^^^^^^
PermissionError: [Errno 13] Permission denied: '/opt/freeware/lib/python3.12/site-packages/fastapi-0.115.4.dist-info'
autoh> /home/autoh$

Please retry after dnf install python3-setuptools-80.9.0-3.noarch

⁣ Also, along with that code output please retry pip3 show commands and see if it works/paste the outputs if it does not. 

Hi Aditya,

Please find the output, executed from root user and autoh user.

 # /opt/freeware/bin/python3 -c "
> import pkg_resources
> for d in pkg_resources.working_set:
>     try:
>         print(d.project_name, d.version)
>     except Exception as e:
>         print(f'ERROR in package folder: {d.egg_info}')
> "
Traceback (most recent call last):
  File "<string>", line 2, in <module>
ModuleNotFoundError: No module named 'pkg_resources'

autoh> /home/autoh$/opt/freeware/bin/python3 -c "
> import pkg_resources
> for d in pkg_resources.working_set:
>     try:
>         print(d.project_name, d.version)
>     except Exception as e:
>         print(f'ERROR in package folder: {d.egg_info}')
> "
Traceback (most recent call last):
  File "<string>", line 2, in <module>
ModuleNotFoundError: No module named 'pkg_resources'

Regards,

Ramkumar

There is something corrupted in the LPAR, with user autoh. We need to remove that. Not sure what package. That output will tell.

Hi Ram,

python3 -c "
import pkg_resources
for d in pkg_resources.working_set:
    try:
        print(d.project_name, d.version)
    except Exception as e:
        print(f'ERROR in package folder: {d.egg_info}')
"

What is the output of this?

Hi Aditya,

We could see it installed now but below commands output shows some error. please assist

 # /opt/freeware/bin/python3 -m pip install fastapi==0.115.4 uvicorn --no-deps
Collecting fastapi==0.115.4
  Downloading fastapi-0.115.4-py3-none-any.whl.metadata (27 kB)
Collecting uvicorn
  Downloading uvicorn-0.52.4-py3-none-any.whl.metadata (6.6 kB)
Downloading fastapi-0.115.4-py3-none-any.whl (94 kB)
Downloading uvicorn-0.52.4-py3-none-any.whl (79 kB)
Installing collected packages: uvicorn, fastapi
Successfully installed fastapi-0.115.4 uvicorn-0.52.4
WARNING: Running pip as the 'root' user can result in broken permissions and conflicting behaviour with the system package manager, possibly rendering your system unusable. It is recommended to use a virtual environment instead: https://pip.pypa.io/warnings/venv. Use the --root-user-action option if you know what you are doing and want to suppress this warning.
root@oldtut004:/ # Read from remote host oldtut004: Connection reset by peer
Connection to oldtut004 closed.
client_loop: send disconnect: Broken pipe
$

autoh> /home/autoh$pip3 show fastapi
ERROR: Exception:
Traceback (most recent call last):
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/cli/base_command.py", line 107, in _run_wrapper
    status = _inner_run()
             ^^^^^^^^^^^^
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/cli/base_command.py", line 98, in _inner_run
    return self.run(options, args)
           ^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/commands/show.py", line 57, in run
    if not print_results(
           ^^^^^^^^^^^^^^
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/commands/show.py", line 192, in print_results
    metadata_version_tuple = tuple(map(int, dist.metadata_version.split(".")))
                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
ValueError: invalid literal for int() with base 10: ''

autoh> /home/autoh$pip3 show uvicorn
ERROR: Exception:
Traceback (most recent call last):
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/cli/base_command.py", line 107, in _run_wrapper
    status = _inner_run()
             ^^^^^^^^^^^^
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/cli/base_command.py", line 98, in _inner_run
    return self.run(options, args)
           ^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/commands/show.py", line 57, in run
    if not print_results(
           ^^^^^^^^^^^^^^
  File "/home/autoh/.local/lib/python3.12/site-packages/pip/_internal/commands/show.py", line 192, in print_results
    metadata_version_tuple = tuple(map(int, dist.metadata_version.split(".")))
                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
ValueError: invalid literal for int() with base 10: ''

Regards,

Ramkumar

Hi,

python is still preferring the cached maturin and pydantic_core possibly because the pyproject.toml files have got updated. 

Please run /opt/freeware/bin/python3 -m pip cache purge

This will clean the cache and then run
dnf install python3-pydantic*
dnf install python3-maturin
export CC="gcc -maix64"
/opt/freeware/bin/python3 -m pip install fastapi==0.115.4 uvicorn --no-deps


Hope this works. If not, paste me the output.

Hi Aditya,

Thanks for your quick support, our use case is to implement API for one of the customer.

I tried the same after installed  maturin python3-pydantic-core packages, but still same issue. please assist.

Regards,

Ramkumar

Hi Ram,

Pydantic core has a problem in AIX for which compiler team is working on the same.

What I did in my LPAR is first install maturin and pydantic_core using dnf.

dnf install maturin python3-pydantic-core

After that you try manually like below. It will install. Please see my LPAR output below. Let me know if there are further issues. We'll help. Also, what is your use case for the same?
python3 -m pip install fastapi uvicorn


Installing collected packages: uvicorn, typing-extensions, annotated-types, typing-inspection, starlette, pydantic, fastapi
  WARNING: The script uvicorn is installed in '//cust_install/opt/freeware/bin' which is not on PATH.
  Consider adding this directory to PATH or, if you prefer to suppress this warning, use --no-warn-script-location.
  Attempting uninstall: typing-extensions
    Found existing installation: typing_extensions 4.12.2
    Uninstalling typing_extensions-4.12.2:
      Successfully uninstalled typing_extensions-4.12.2
   ---------------------------------- ----- 6/7 [fastapi]  WARNING: The script fastapi is installed in '//cust_install/opt/freeware/bin' which is not on PATH.
  Consider adding this directory to PATH or, if you prefer to suppress this warning, use --no-warn-script-location.
ERROR: pip's dependency resolver does not currently take into account all the packages that are installed. This behaviour is the source of the following dependency conflicts.
pyopenssl 25.1.0 requires cryptography<46,>=41.0.5, but you have cryptography 48.0.0 which is incompatible.
Successfully installed annotated-types-0.8.0 fastapi-0.141.1 pydantic-2.13.4 starlette-1.6.0 typing-extensions-4.16.0 typing-inspection-0.4.4 uvicorn-0.52.4

Hi Ram,
Please use below to install them, 

pip3 install pydantic starlette click h11 typing-extensions

Those dependencies are pretty straight. Please try it and let me know.

# /opt/freeware/bin/python3.12 -c "from fastapi import FastAPI; print(FastAPI)"
<class 'fastapi.applications.FastAPI'>

Hi Aditya,

Thanks for your great support, App team conformed that is installed now, but still, they get some dependencies error pasted below.

Hi Ram,

FastAPI and Uvicorn are installed successfully:

fastapi 0.115.4
uvicorn 0.52.4

However, pip3 check reports unresolved dependencies and package compatibility issues:

without these modules fastapi wont work