pip list --outdated --format=freeze | %{$_.split('==')[0]} | %{pip install --upgrade $_}
pip list --outdated --format=freeze | grep -v '^-e' | cut -d = -f 1 | xargs -n1 pip install -U
pip list --outdated
pip list --outdated --format=freeze | grep -v '^-e' | cut -d = -f 1 | xargs -n1 pip install -U