Pypi Source Manager: fast switch between different Pypi Source: pypi, double, aliyun, tsu,.
This package is inspired by Pana/nrm.
pip install psm
psm ls
psm use douban
or 'aliyun' and 'thu'
psm current
psm add my_source https://pypi.python.org/simple
psm delete my_source
python -m psm ls
