如何离线安装python的requests库

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1、下载安装包

1.1 检查requests模块所需依赖包

在可以上网且已经安装python的机器上检查requests模块需要哪些依赖包，如果这些依赖包未安装，直接安装requests也不能使用。

使用命令：

pip show requests

发现需要chardet，idna，urllib3，certifi

检查这几个包是否已安装，如果未安装，则也需要手工安装。

1.2 下载requests所需依赖包

在网站 https://www.lfd.uci.edu/~gohlke/pythonlibs 上找到相应的程序，下载并传输至目标机器。

1.3 下载requests包

从github下载requests源码包并传输至目标机器。

https://github.com/kennethreitz/requests

将requests-master.zip解压到python的安装目录中

2、安装

2.1 安装requests所需依赖包

安装命令为

 pip install xx.whl

下图中最后一个是正常安装成功，前面三个有报错信息，目前暂时忽略，因为经过验证没有影响requests安装。

D:\python-lib>pip install urllib3-1.26.8-py2.py3-none-any.whlProcessing d:\python-lib\urllib3-1.26.8-py2.py3-none-any.whlInstalling collected packages: urllib3ERROR: After October 2020 you may experience errors when installing or updating packages. This is because pip will change the way that it resolves dependency conflicts. We recommend you use --use-feature=2020-resolver to test your packages with thenew resolver before it becomes the default. requests 2.25.1 requires certifi>=2017.4.17, which is not installed.requests 2.25.1 requires chardet<5,>=3.0.2, which is not installed.requests 2.25.1 requires idna<3,>=2.5, which is not installed.Successfully installed urllib3-1.26.8 D:\python-lib>pip install chardet-4.0.0-py3-none-any.whlProcessing d:\python-lib\chardet-4.0.0-py3-none-any.whlInstalling collected packages: chardetERROR: After October 2020 you may experience errors when installing or updatingpackages. This is because pip will change the way that it resolves dependency conflicts. We recommend you use --use-feature=2020-resolver to test your packages with thenew resolver before it becomes the default. requests 2.25.1 requires certifi>=2017.4.17, which is not installed.requests 2.25.1 requires idna<3,>=2.5, which is not installed.Successfully installed chardet-4.0.0 D:\python-lib>pip install certifi-2019.11.28-py2.py3-none-any.whlProcessing d:\python-lib\certifi-2019.11.28-py2.py3-none-any.whlInstalling collected packages: certifiERROR: After October 2020 you may experience errors when installing or updatingpackages. This is because pip will change the way that it resolves dependency conflicts. We recommend you use --use-feature=2020-resolver to test your packages with thenew resolver before it becomes the default. requests 2.25.1 requires idna<3,>=2.5, which is not installed.Successfully installed certifi-2019.11.28 D:\python-lib>pip install idna-2.8-py2.py3-none-any.whlProcessing d:\python-lib\idna-2.8-py2.py3-none-any.whlInstalling collected packages: idnaSuccessfully installed idna-2.8 D:\python-lib>

2.2 安装requests

在解压好的equests-master目录下打开cmd（或者cmd中切换目录至该路径）

输入命令开始安装

python setup.py install

3、检查是否安装成功

在python中使用import requests查看

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