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300字范文 > Could not find a version that satisfies the requirement cryptography (from pymysql) (from versions:

Could not find a version that satisfies the requirement cryptography (from pymysql) (from versions:

时间:2020-09-11 17:13:20

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Could not find a version that satisfies the requirement cryptography (from pymysql) (from versions:

今天使用pip安装pymysql时出现如下错误:

Could not find a version that satisfies the requirement cryptography (from pymysql) (from versions: )

No matching distribution found for cryptography (from pymysql)

使用pip安装其他模块时也可能出现上述错误,主要原因是网络的问题,需要使用国内的镜像源来加速,比如豆瓣源

因此命令可以使用:

pip install scrapy -i /simple/ --trusted-host

或者

pip3 install scrapy -i /simple/ --trusted-host

即可成功安装。

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