Originally posted by: captain AM

Installed all the packages required for yum using the yum.sh script found on the AIX Toolbox for Linux Applications site.  OS is at AIX 7.1.  Yum successfully installed & ran ok with python as delivered at 2.7.10-1.   But after  "yum install samba" was successfully installed (which updated python to 2.7.15-1) I get following errors if I run "yum check-update" or other yum commands.  "yum check" works ok - no errors. 

File "/opt/freeware/lib/python2.7/site-packages/yum/repoMDObject.py", line 140, in parse

parser = iterparse(infile)

File "/opt/freeware/lib/python2.7/site-packages/yum/misc.py", line 1171, in cElementTree_iterparse

_cElementTree_import()

File "/opt/freeware/lib/python2.7/site-packages/yum/misc.py", line 1166, in _cElementTree_import

import cElementTree

ImportError: No module named cElementTree

Yet if I query the rpm that supplies cElementTree I see this module : ( and see it installed at location as listed )

> rpm -ql -p python-2.7.10-1.aix6.1.ppc.rpm|grep cElementTree

/opt/freeware/lib/python2.7/xml/etree/cElementTree.py

/opt/freeware/lib/python2.7/xml/etree/cElementTree.pyc

/opt/freeware/lib/python2.7/xml/etree/cElementTree.pyo

/opt/freeware/lib64/python2.7/xml/etree/cElementTree.py

/opt/freeware/lib64/python2.7/xml/etree/cElementTree.pyc

/opt/freeware/lib64/python2.7/xml/etree/cElementTree.pyo

Originally posted by: KiloBravo

Check to see which version of expat is on that box.  If it's 2.0.x you've hit a bug resulting from bad dependency checking in the python package, as you need at least 2.2.0 for things to work right.

If this is the case you'll need to manually grab one of these two packages

• https://public.dhe.ibm.com/aix/freeSoftware/aixtoolbox/RPMS/ppc/expat/expat-2.2.0-1.aix6.1.ppc.rpm
• https://public.dhe.ibm.com/aix/freeSoftware/aixtoolbox/RPMS/ppc/expat/expat-2.2.4-1.aix6.1.ppc.rpm

and install it with 'rpm -Uvh'.

Originally posted by: AyappanP

As mentioned by @KiloBravo a4e6ca95-74e3-4369-a821-985379c65f99 , updating expat to 2.2.0 or above will fix this issue.

I mentioned the root cause of this issue in one earlier forum discussion --> https://www.ibm.com/developerworks/community/forums/html/topic?id=961114f0-2c4a-4dff-8d88-f629a0172796&ps=25

Originally posted by: captain AM

Eureka!  that did the trick!     Downloaded and did a rpm -Uvh install of expat-2.2.4-1.aix6.1.ppc.rpm and yum is alive and well.

thanks for the help.