HTTPSConnectionPool(host='files.pythonhosted.org', port=443): Read timed out

python下载第三方库发生超时,解决办法:将超时时间延长后重新下载:

步骤 (1):   pip --default-timeout=100 install -U pip

步骤 (2):   pip --default-timeout=100 install -U (这里加上你要下载的库的名字),如:

                         pip --default-timeout=100 install -U selenium

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转载自blog.csdn.net/m0_37827405/article/details/81486272
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