pip 查看已安装的库、批量更新库

1、查看安装的库

pip list或者pip freeze

2、查看过时的库

pip list --outdated

3、批量更新的Python脚本

import pip
from subprocess import call
  
for dist in pip.get_installed_distributions():
    call("sudo pip install --upgrade " + dist.project_name, shell=True)

4、更新pip

pip install --upgrade pip