The installation package python pip commonly used commands

# PIP version inquiry 
PIP - V

# Install the package. Format: pip install package names 
pip install pygame

# Install the package specified version number. Format: pip install packages == package version number
pip install django==1.8.2

# Package information (the installation path, version of the software). Format: pip show package names 
pip show pygame

# View all installed packages 
pip list