I would like to have a different PYTHONPATH from my usual in a particular virtualenv. How do I set this up automatically? I realize that it's possible to hack the bin/activate
file, is there a better/more standard way?
views:
1098answers:
2
+1
A:
Here is the hacked version of bin/activate
for reference. It sets the PYTHONPATH correctly, but unsetting does not work.
# This file must be used with "source bin/activate" *from bash*
# you cannot run it directly
deactivate () {
if [ -n "$_OLD_VIRTUAL_PATH" ] ; then
PATH="$_OLD_VIRTUAL_PATH"
export PATH
unset _OLD_VIRTUAL_PATH
fi
# This should detect bash and zsh, which have a hash command that must
# be called to get it to forget past commands. Without forgetting
# past commands the $PATH changes we made may not be respected
if [ -n "$BASH" -o -n "$ZSH_VERSION" ] ; then
hash -r
fi
if [ -n "$_OLD_VIRTUAL_PS1" ] ; then
PS1="$_OLD_VIRTUAL_PS1"
export PS1
unset _OLD_VIRTUAL_PS1
fi
if [ -n "$_OLD_PYTHONPATH" ] ; then
PYTHONPATH="$_OLD_PYTHONPATH"
export PYTHONPATH
unset _OLD_PYTHONPATH
fi
unset VIRTUAL_ENV
if [ ! "$1" = "nondestructive" ] ; then
# Self destruct!
unset deactivate
fi
}
# unset irrelavent variables
deactivate nondestructive
VIRTUAL_ENV="env_location" # Anonymized
export VIRTUAL_ENV
_OLD_VIRTUAL_PATH="$PATH"
PATH="$VIRTUAL_ENV/bin:$PATH"
export PATH
_OLD_VIRTUAL_PS1="$PS1"
if [ "`basename \"$VIRTUAL_ENV\"`" = "__" ] ; then
# special case for Aspen magic directories
# see http://www.zetadev.com/software/aspen/
PS1="[`basename \`dirname \"$VIRTUAL_ENV\"\``] $PS1"
else
PS1="(`basename \"$VIRTUAL_ENV\"`)$PS1"
fi
export PS1
# This should detect bash and zsh, which have a hash command that must
# be called to get it to forget past commands. Without forgetting
# past commands the $PATH changes we made may not be respected
if [ -n "$BASH" -o -n "$ZSH_VERSION" ] ; then
hash -r
fi
_OLD_PYTHONPATH="$PYTHONPATH"
PYTHONPATH="new_pythonpath" #Anonymized
export PYTHONPATH
saffsd
2009-06-09 12:09:29
+4
A:
Hello!
This django-users post is probably going to help you a lot. It suggests using virtualenvwrapper to wrap virtualenv, to use the add2virtualenv command. Using this, when the environment is active, you can just call:
add2virtualenv directory1 directory2 ...
to add the directories to your pythonpath for the current environment.
It handles autonomously the PATH changes on environment switches. No black magic required. Et voila!
NicDumZ
2009-06-09 12:15:34
I'm trying this out now, and I'll probably accept it in a couple of days if there still aren't any other solutions that do not depend on additional packages.
saffsd
2009-06-11 08:57:49