Unconditionally set PYTHONPATH and PYTHONHOME in sage-env

[jdemeyer]

sage-env contains:

if [ -d "$SAGE_ROOT/local/lib/python" ]; then
    PYTHONPATH="$SAGE_ROOT/local/lib/python"
    if [ -n "$SAGE_PATH" ]; then
        PYTHONPATH="$SAGE_PATH:$PYTHONPATH"
    fi
    PYTHONHOME="$SAGE_ROOT/local"
    export PYTHONPATH
    export PYTHONHOME
fi

I see no reason to set these environment variables only if Python is already installed. On the contrary, I think they are good to have during the "testing" part of the Python spkg.

Component: scripts

Issue created by migration from https://trac.sagemath.org/ticket/12291

[jdemeyer]

Attachment: 12291_python_env.patch.gz

[jdemeyer]

comment:1

Never mind, this can actually cause build failures of Python.