# -*- coding: utf-8 -*-
import pip
from subprocess import call
for dist in pip.get_installed_distributions():
call("pip install --upgrade " + dist.project_name, shell=True)
# -*- coding: utf-8 -*-
import pip
from subprocess import call
for dist in pip.get_installed_distributions():
call("pip install --upgrade " + dist.project_name, shell=True)原文：https://www.cnblogs.com/everfight/p/pip_upgrade.html