On Thu, Dec 22, 2011 at 02:49:06AM +0100, Victor Stinner wrote: > > >Do people still have to use this in commercial environments or is > >everyone on 2.6+ nowadays? > > At work, we are still using Python 2.5. Six months ago, we started a > project to upgrade to 2.7, but we have now more urgent tasks, so the > upgrade is delayed to later. Even if we upgrade new clients to 2.7, > we will have to continue to support 2.5 for some more months (or > years?). > At my work, I'm on RHEL5 and RHEL6. So I'm currently supporting python-2.4 and python-2.6. We're up to 75% RHEL6 (though, not the machines where most of our deployed, custom written apps are running) so I shouldn't have to support python-2.4 for much longer.
> In a personal project (the IPy library), I dropped support of Python > 2.5 in february 2011. Recently, I got a mail asking me where the > previous version of my library (supporting Python 2.4) can be > downloaded! Someone is still using Python 2.4: "I'm stuck with python > 2.4 in my work environment." > As part of work, I package for EPEL5 (addon packages for RHEL5). Sometimes we need a new version of a package or a new package for RHEL5 and thus need to have python-2.4 compatible versions of the package and any of its dependencies. When I no longer need to maintain python-2.4 stuff for work, I'm hoping to not have to do quite so much of this but sometimes I know I'll still get requests to update an existing package to fix a bug or fix a feature and that will require updates of dependent libraries. I'll still be stuck looking for python-2.4 compatible versions of all of these :-( > >What do people feel? > > For a new project, try to support Python 2.5, especially if you would > like to write a portable library. For a new application working on > Mac OS X, Windows and Linux, you can only support Python 2.6. > I agree that libraries have a need to go farther back than applications. I have one library that I support on python-2.3 (for RHEL4... I'm counting down the months on that one :-). Every other library I maintain, I make sure I support at least python-2.4. Application-wise, I currently have to support python-2.4+ but given that Linux distros seem to all have some version out that supports at least python-2.6, I don't think I'll be developing any applications that intentionally support less than that once I get moved away from RHEL-5 at my workplace. -Toshio
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