Comment 1 for bug 78520

I think it would fix this problem of having old modules lying around:

I did a setup.py install with the latest code base and now bzr refuses
to run at all. Even if I install an older version I still have this
problem. Here is the output I get:

Traceback (most recent call last):
  File "/usr/bin/bzr", line 84, in ?
    import bzrlib.commands
  File "/usr/lib/python2.4/site-packages/bzrlib/commands.py", line 57, in ?
    from bzrlib.option import Option
  File "/usr/lib/python2.4/site-packages/bzrlib/option.py", line 358, in ?
    log.log_formatter_registry, value_switches=True,
  File "/usr/lib/python2.4/site-packages/bzrlib/lazy_import.py", line
99, in __getattribute__
    return getattr(obj, attr)
AttributeError: 'module' object has no attribute 'log_formatter_registry'

It seems the latest bzr has messed up the installation somehow. It was
working fine before I installed the latest version.

If I run bzr from its source directory then it works but it is no longer
possible to install it...

Nick
You need to remove your old bzrlib/ install before installing a new one.

This is a bug in python's built-in install functionality. In that it
just adds files, it doesn't remove old ones. I think if you just delete
"C:\Python24\Lib\site-packages\bzrlib" first, and then install bzr it
will work fine.

You may want to copy ...\bzrlib\plugins\* first, in case you had any
plugins installed.

John
=:->