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pykickstart usage of OrderedDict and SNAKE



Hi guys,
I'm working together with Fedora QA to configure a Beaker lab and a SNAKE server in order to be able to run installation test jobs (among others) for Fedora. I'm also opening up some of the test cases previously used internally at Red Hat.

Currently we're seeing the following issues:

1) SNAKE templates depend on pykickstart and need a recent version for the RHEL7 constant and support for latest syntax

2) The service is running on a RHEL 6 box with Python 2.6. After rebuilding pykickstart-1.99.45-1 from SRPM and upgrading I hit this:


Traceback (most recent call last):
  File "/usr/sbin/snake-server", line 117, in _dispatch
    return DocXMLRPCServer._dispatch(self, method, params)
  File "/usr/lib64/python2.6/SimpleXMLRPCServer.py", line 418, in _dispatch
    return func(*params)
  File "/usr/lib/python2.6/site-packages/snake/ksdb.py", line 167, in generate
    k = PyKickstart(version=ksversion)
  File "/usr/lib/python2.6/site-packages/snake/kickstart.py", line 61, in __init__
    self.setversion(version)
  File "/usr/lib/python2.6/site-packages/snake/kickstart.py", line 171, in setversion
    Kickstart.setversion(self,version)
  File "/usr/lib/python2.6/site-packages/snake/kickstart.py", line 77, in setversion
    self.handler = handlerclass()
  File "/usr/lib/python2.6/site-packages/pykickstart/base.py", line 275, in __init__
    self._registerCommands(mapping, dataMapping, commandUpdates, dataUpdates)
  File "/usr/lib/python2.6/site-packages/pykickstart/base.py", line 348, in _registerCommands
    from pykickstart.handlers.control import commandMap
  File "/usr/lib/python2.6/site-packages/pykickstart/handlers/control.py", line 21, in <module>
    from pykickstart.commands import *
  File "/usr/lib/python2.6/site-packages/pykickstart/commands/__init__.py", line 20, in <module>
    import authconfig, autopart, autostep, bootloader, btrfs, clearpart, cdrom, device
  File "/usr/lib/python2.6/site-packages/pykickstart/commands/autopart.py", line 24, in <module>
    from collections import OrderedDict
ImportError: cannot import name OrderedDict


From what I see OrderedDict is from Python 2.7.


Questions are:

* How do you use it in pykickstart and is it possible to change this for backward compatibility?

* In general what should we do with this kind of situation where a tool needs the most recent package (in this case pykcisktart) but runs on a stable system like RHEL 6 which has older software stack and the most recent versions are incompatible?


--
Alex





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