Bazaar setup.py doesn't handle dev version of pyrex

[gkb1986]

I had trouble installing Bazaar from source. After some digging, I traced the problem to how setup.py handles the dev version of pyrex. When pyrex dev versions have been installed, pyrex_version in the code below has a '-dev' suffix. 'int' doesn't handle this well and throws an uncaught exception.

Here's the change I made to the setup.py file in order to get it to work.

Sorry about the clumsiness. I didn't checkout a repo and couldn't generate a proper patch easily.

Line 205
Old version:
  pyrex_version_info = tuple(map(int, pyrex_version.rstrip("+").split('.'))

This is the output of pyrex_version.restrip("+").split('.'):
  ['0', '19-dev']

My version
  import re
  get_version_info = lambda x: int( re.sub("[^0-9]", "", x ) )
  pyrex_version_info = tuple(map(get_version_info,
    pyrex_version.rstrip("+").split('.'))).