I'm writing a game in python 2.7, and want to script the "bootstrap" of my game's development environment, and then invoke shovel. If virtualenvwrapper is not detected, I will use a virtualenv bootstrap solution. However if virtualenvwrapper is detected, I would like to use it instead.
The problem is that the virtualenvwrapper inline shell functions are not inherited by my bootstrap script. As far as I know, that rules out running something like "mkvirtualenv NotOrion". Since the environment variable "VIRTUALENVWRAPPER_VIRTUALENV" is set (in my case, from macports: /opt/local/bin/virtualenv-2.7), I tried using it directly instead:
#!/usr/bin/env bash
# Name your first "bootstrap" environment:
ENV_NAME=NotOrion
# Options for your first environment:
ENV_OPTS='--no-site-packages --distribute'
unset PYTHONDONTWRITEBYTECODE
function create_virtualenvwrapper_venv {
echo "installing into virtualenvwrapper directory"
cd $WORKON_HOME
$VIRTUALENVWRAPPER_VIRTUALENV $ENV_OPTS $ENV_NAME
cd -
#mkvirtualenv $ENV_NAME
#workon $ENV_NAME
}
function create_standalone_venv {
# not run/snipped
}
if [ -z "$VIRTUALENVWRAPPER_VIRTUALENV" ]; then
create_standalone_venv
else
create_virtualenvwrapper_venv
fi
pip install shovel
shovel help
My bootstrap script finishes installing shovel. However running shovel (eg the last line) produces warnings:
/Users/me/.virtualenvs/NotOrion/bin/shovel:25: UserWarning: Module argparse was already imported from /opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/argparse.pyc, but /Users/me/.virtualenvs/NotOrion/lib/python2.7/site-packages is being added to sys.path
import pkg_resources
# normal shovel output snipped
So is it possible to somehow invoke "mkvirtualenv" from a script? If not, can I run something else from my script that has the same effect but doesn't produce warnings?
Your script should be able to do:
# 'which' will print absolute path to virtualenvwrapper.sh
source `which virtualenvwrapper.sh`
I use that for some deployment scripts.