fix unavailable django during installation
fix unavailable django during installation

tkwon/dj-stripe,pydanny/dj-stripe,tkwon/dj-stripe,kavdev/dj-stripe,pydanny/dj-stripe,photocrowd/dj-stripe,jleclanche/dj-stripe,jameshiew/dj-stripe,jameshiew/dj-stripe,jleclanche/dj-stripe,dj-stripe/dj-stripe,kavdev/dj-stripe,dj-stripe/dj-stripe,photocrowd/dj-stripe