-------------------------------------------- On Mon, 11/25/13, Jurko Gospodnetić <jurko.gospodne...@pke.hr> wrote:
Subject: Parallel Python x.y.A and x.y.B installations on a single Windows machine To: python-list@python.org Date: Monday, November 25, 2013, 1:32 PM Hi all. I was wondering what is the best way to install multiple Python installations on a single Windows machine. Regular Windows installer works great as long as all your installations have a separate major.minor version identifier. However, if you want to have let's say 2.4.3 & 2.4.4 installed at the same time it does not seem to work. I have not been able to find any prepackaged Python installation or really any solution to this. Most of the advice seems to boil down to 'do not use such versions together, use only the latest'. We would like to run automated tests on one of our projects (packaged as a Python library) with different Python versions, and since our code contains workarounds for several problems with specific Python patch versions, we'd really like to be able to run the tests with those specific versions and with as little fuss as possible. Looking at what the Python installer does, the only problematic part for working around this manually seems to be the registry entries under 'Software\Python\PythonCore\M.m' where 'M.n' is the major.minor version identifier. If Python interpreter expects to always find its entries there, then I guess there is no way to do what we need without building customized Python executables. Is there a way to force a specific Python interpreter to not read in this information, read it from an .ini file or something similar? HI Jurko, Check out the following packages: virtualenv, virtualenvwrapper, tox virtualenv + wrapper make it very easy to switch from one python version to another. Stricly speaking you don't need virtualenvwrapper, but it makes working with virtualenv a whole lot easier.Tox also uses virtualenv. You can configure it to sdist your package under different python versions. Also, you can make it run nosetests for each python version and/or implementation (pypy and jython are supported) Albert-Jan -- https://mail.python.org/mailman/listinfo/python-list
