-i https://pypi.org/simple certifi==2019.3.9 chardet==3.0.4 falcon==1.4.1 gunicorn==19.9.0 idna==2.8 psycopg2-binary==2.8.2 python-mimeparse==1.6.0 requests==2.21.0 six==1.12.0 urllib3==1.24.1