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mongodb/evergreen/prelude_venv.sh

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function activate_venv {
# check if virtualenv is set up
if [ -d "${workdir}/venv" ]; then
if [ "Windows_NT" = "$OS" ]; then
# Need to quote the path on Windows to preserve the separator.
. "${workdir}/venv/Scripts/activate" 2> /tmp/activate_error.log
else
. ${workdir}/venv/bin/activate 2> /tmp/activate_error.log
fi
if [ $? -ne 0 ]; then
echo "Failed to activate virtualenv: $(cat /tmp/activate_error.log)"
exit 1
fi
python=python
else
if [ -z "$python" ]; then
echo "\$python is unset. This should never happen"
exit 1
fi
python=${python}
fi
if [ "Windows_NT" = "$OS" ]; then
export PYTHONPATH="$PYTHONPATH;$(cygpath -w ${workdir}/src)"
else
export PYTHONPATH="$PYTHONPATH:${workdir}/src"
fi
echo "python set to $(which $python)"
}