python自动升级三方库

#!/usr/bin/python
# -*- coding: utf-8 -*-

import sys
import subprocess
# 由于pip内置对象已失效,自己做了一个自动升级三方库的脚本
# from pip._internal.utils.misc import get_installed_distributions

# 备份三方文件放到桌面
# call("pip freeze > requirements.txt", shell=True)
# 三方文件直接安装
# call("sudo pip install -r requirements.txt", shell=True)


def read_outdated(order="pip list -o"):
    # 罗列所有的三方库
    status, pip_list_outdated = subprocess.getstatusoutput(order)
    # TODO 写个筛选
    if status == 0:
        # 空格分割一次
        pip_list_outdated = pip_list_outdated.split()[8::]
        if len(pip_list_outdated) != 0:
            # 等差取值
            app_number = len(pip_list_outdated) / 4
            app_list = []
            for i in range(int(app_number)):
                app_list.append(pip_list_outdated[i * 4])
            return app_list
        else:
            return None
    else:
        print("命令有问题!")
 

你可能感兴趣的:(娱乐,python,pip,shell)