windows環(huán)境下, pip更新所有的安裝包

import pip
from subprocess import call

packages = [dist.project_name for dist in pip.get_installed_distributions()]
call("pip install --upgrade " + ' '.join(packages), shell=True)

但是有些包更新不了, 單獨(dú)更新時出現(xiàn)錯誤

Cannot uninstall 'scikit-learn'. It is a distutils installed project and thus we cannot accurately determine which files belong to it which would lead to only a partial uninstall.

解決方法: 修改命令pip install -U scikit-learn為pip install -U --ignore-installed scikit-learn

因此, 更新所有的安裝包可修改為

import pip
from subprocess import call

packages = [dist.project_name for dist in pip.get_installed_distributions()]
call("pip install --upgrade --ignore-installed " + ' '.join(packages), shell=True)

如果pip版本過高, 運(yùn)行會出現(xiàn)錯誤

AttributeError: module 'pip' has no attribute 'get_installed_distributions'

可以嘗試下面這種方法

pip install pip-review
pip-review --local --interactive

其它

更新pip: python -m pip install --upgrade pip