No module named 'Crypto'的解决方案

Posted 2021-09-26 ShadowCK

问题

使用Crypto库时出现No module named \'Crypto\'。

Crypto的依赖库

pip install pycryptodome
pip install crypto
pip install pycrypto

我的python版本是3.7，使用pip install pycrypto命令时报错：

C:\\Users\\MI\\AppData\\Local\\Programs\\Python\\Python37>Pip3.7 install pycrypto
Collecting pycrypto
  Using cached pycrypto-2.6.1.tar.gz (446 kB)
Using legacy \'setup.py install\' for pycrypto, since package \'wheel\' is not installed.
Installing collected packages: pycrypto
    Running setup.py install for pycrypto ... error
    ERROR: Command errored out with exit status 1:
     command: \'c:\\users\\mi\\appdata\\local\\programs\\python\\python37\\python37.exe\' -u -c \'import sys, setuptools, tokenize; sys.argv[0] = \'"\'"\'C:\\\\Users\\\\MI\\\\AppData\\\\Local\\\\Temp\\\\pip-install-iwoi68sx\\\\pycrypto_11418f0350244305b0226b38fc392f84\\\\setup.py\'"\'"\'; __file__=\'"\'"\'C:\\\\Users\\\\MI\\\\AppData\\\\Local\\\\Temp\\\\pip-install-iwoi68sx\\\\pycrypto_11418f0350244305b0226b38fc392f84\\\\setup.py\'"\'"\';f=getattr(tokenize, \'"\'"\'open\'"\'"\', open)(__file__);code=f.read().replace(\'"\'"\'\\r\\n\'"\'"\', \'"\'"\'\\n\'"\'"\');f.close();exec(compile(code, __file__, \'"\'"\'exec\'"\'"\'))\' install --record \'C:\\Users\\MI\\AppData\\Local\\Temp\\pip-record-8g35bcmi\\install-record.txt\' --single-version-externally-managed --compile --install-headers \'c:\\users\\mi\\appdata\\local\\programs\\python\\python37\\Include\\pycrypto\'

报错原因

pycrypto、pycrytodome和crypto是一个东西，crypto在python上面的名字是pycrypto，它是一个第三方库，但是已经停止更新三年了。

解决方法

1. 使用pip命令安装以下依赖库，无视报错：

   pip install pycryptodome
   pip install crypto
   pip install pycrypto

2. 打开\\Python\\Python37\\Lib\\site-packages这个路径，找到crypto这个文件夹。
3. 将crypto这个文件夹重命名为Crypto。
4. 重新运行程序即可发现No module named \'Crypto\'报错消失。

参考

No module named \'Crypto\' 解决方案