And this is why I cringe every time someone puts: #!/usr/bin/python ...at the top of their script instead of being specific like: #!/usr/bin/python2.6 D

And this is why I cringe every time someone puts: #!/usr/bin/python ...at the top of their script instead of being specific like: #!/usr/bin/python2.6 Developers need to stop assuming that /usr/bin/python is a specific version! As long as that's done, and the packaging is done right, there shouldn't be any major issues for the vast majority of programs.