Use subprocess.call([sys.executable, '-m', 'pip', ...]) to call pip

Do not use “os.system('pip install {0}=={1}'.format(pkg, version))”.

Instead, I suggest doing as follows:

import pip
pip.main(['install', '{0}=={1}'.format(pkg, version)])

Sorry for my poor English.

[ghost]

Actually, what you’re supposed to do is this:

import subprocess
import sys
subprocess.call([sys.executable, '-m', 'pip', 'install', '{0}=={1}'.format(pkg, version)])

[d3rrick]

welcome, I commented because i could not find a proper example of adding pip options. my challenge is that am using a company proxy,so i needed the extra options.