【python】读取本地已有的requirements.txt，安装依赖

1、当项目开发时，经常遇到别人在新项目中新增了某个库而导致我们本地项目很难run起来

• base

# -*- encoding: utf-8 -*-
"""
@File: auto_import.py
"""
import os
import errno
import subprocess
import pkg_resources
from typing import Dict


def check_install_pkgs(
    pkgs: list,
    mirror: str = "https://mirrors.aliyun.com/pypi/simple/",
    check_local: bool = False,
    filepath: str = None
):
    """
    检查并安装依赖库
    :params pkgs: list
    :params mirror: 默认镜像源
    :params check_local: (与filepath一起使用)是否检查本地, 如果是, 需要在本地创建一个requirements.txt并将需要的库写入
    :params filepath: requirements.txt文件路径
    """
    if check_local:
        with open(filepath, mode="r", encoding="utf-8") as file:
            lines: List[str] = file.readlines()
            pkgLists: list = [line.strip() for line in lines if line and not line.startswith('#')]
    else:
        pkgLists: list = pkgs
    for _, pkg in enumerate(pkgLists):
        try:
            pkg_resources.get_distribution(pkg)
        except pkg_resources.DistributionNotFound:
            subprocess.check_call(["pip", "install", pkg, "-i", mirror])