if [ $1 ]
then
    wget -q $1 -O - | tar xz > .pypi-guess-deps.log 2>&1
    virtualenv .venv >> .pypi-guess-deps.log 2>&1
    source .venv/bin/activate >> .pypi-guess-deps.log 2>&1
    cd * && python setup.py install >> .pypi-guess-deps.log 2>&1
    pip freeze -l
else
   echo "Usage: pypi-guess-deps.sh PACKAGE-URL

log is written to `pypi-guess-deps.log`
"
fi