On 7/25/2010 1:51 PM, Joel Goldstick wrote:
Edward Diener wrote:
Are there any documents about multiple versionsof Python coexisting in
the same OS ( Windows in my case ) and what pitfalls to look out for ?
I have already run into a number of them. I installed Python 2.7 and
3.1.2 into completely folders, but immediately ran into serious
problems executing a Python script.
The first problem is that just invoking Python will start whichever
version is first in the PATH, and this is true from the command line
or internally in a Python script.
The second problem is that invoking a script ( some xxx.py ) will
start whichever version of Python is associated with the .py extension.
The third problem is if some software expects its scripts, which it
puts in some Python subdirectory to be in the PATH.
There may be other considerations but overall having to versions
coexisting has turned out to be a big headache involving both changes
in the PATH and in the .py association.
Does anybody know of other things to look out for ?
There is this:
http://pypi.python.org/pypi/virtualenv
It appears to be only for Linux.
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