Python踩坑之路-Python-3.6 安装pycrypto 2.6.1各种疑难杂症及解决方案

2020/3/11更新

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1.下载pycrypto源码

python setup.py install 

如果没有报错误，看到

running install_egg_info 

恭喜你，不用踩坑，直接可以关闭这篇东西去愉快地写代码了

2.安装过程中显示unable to find vcvarsall.bat

3.安装对应版本的msvs(Microsoft Visual Studio)

• VC++2015
• Python Tools
• Web Deveolper Tools
  这三个模块，500M左右，重新安装就提示全部成功了
  很多人说装完之后要改环境变量，

  
  
  
  

 python2：set VS90COMNTOOLS=%VS140COMNTOOLS% python3：set VS100COMNTOOLS=%VS140COMNTOOLS% 

running install running build running build_py running build_ext warning: GMP or MPIR library not found; Not building Crypto.PublicKey._fastmath. building ‘Crypto.Random.OSRNG.winrandom‘ extension C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\BIN\x86_amd64\cl.exe /c /nologo /Ox /W3 /GL /DNDEBUG /MD -Isrc/ -Isrc/inc-msvc/ -IC:\Python36\include -IC:\Python36\include winrand.c C:\Program Files (x86)\Windows Kits\10\include\10.0.10240.0\ucrt\inttypes.h(26): error C2061: syntax error: identifier ‘intmax_t‘ C:\Program Files (x86)\Windows Kits\10\include\10.0.10240.0\ucrt\inttypes.h(27): error C2061: syntax error: identifier ‘rem‘ C:\Program Files (x86)\Windows Kits\10\include\10.0.10240.0\ucrt\inttypes.h(27): error C2059: syntax error: ‘;‘ C:\Program Files (x86)\Windows Kits\10\include\10.0.10240.0\ucrt\inttypes.h(28): error C2059: syntax error: ‘}‘ C:\Program Files (x86)\Windows Kits\10\include\10.0.10240.0\ucrt\inttypes.h(30): error C2061: syntax error: identifier ‘imaxdiv_t‘ C:\Program Files (x86)\Windows Kits\10\include\10.0.10240.0\ucrt\inttypes.h(30): error C2059: syntax error: ‘;‘ C:\Program Files (x86)\Windows Kits\10\include\10.0.10240.0\ucrt\inttypes.h(40): error C2143: syntax error: missing ‘{‘ before ‘__cdecl‘ C:\Program Files (x86)\Windows Kits\10\include\10.0.10240.0\ucrt\inttypes.h(41): error C2146: syntax error: missing ‘)‘ before identifier ‘_Number‘ C:\Program Files (x86)\Windows Kits\10\include\10.0.10240.0\ucrt\inttypes.h(41): error C2061: syntax error: identifier ‘_Number‘ C:\Program Files (x86)\Windows Kits\10\include\10.0.10240.0\ucrt\inttypes.h(41): error C2059: syntax error: ‘;‘ C:\Program Files (x86)\Windows Kits\10\include\10.0.10240.0\ucrt\inttypes.h(42): error C2059: syntax error: ‘)‘ C:\Program Files (x86)\Windows Kits\10\include\10.0.10240.0\ucrt\inttypes.h(45): error C2143: syntax error: missing ‘{‘ before ‘__cdecl‘ C:\Program Files (x86)\Windows Kits\10\include\10.0.10240.0\ucrt\inttypes.h(46): error C2146: syntax error: missing ‘)‘ before identifier ‘_Numerator‘ C:\Program Files (x86)\Windows Kits\10\include\10.0.10240.0\ucrt\inttypes.h(46): error C2061: syntax error: identifier ‘_Numerator‘ C:\Program Files (x86)\Windows Kits\10\include\10.0.10240.0\ucrt\inttypes.h(46): error C2059: syntax error: ‘;‘ C:\Program Files (x86)\Windows Kits\10\include\10.0.10240.0\ucrt\inttypes.h(46): error C2059: syntax error: ‘,‘ C:\Program Files (x86)\Windows Kits\10\include\10.0.10240.0\ucrt\inttypes.h(48): error C2059: syntax error: ‘)‘ C:\Program Files (x86)\Windows Kits\10\include\10.0.10240.0\ucrt\inttypes.h(50): error C2143: syntax error: missing ‘{‘ before ‘__cdecl‘ C:\Program Files (x86)\Windows Kits\10\include\10.0.10240.0\ucrt\inttypes.h(56): error C2143: syntax error: missing ‘{‘ before ‘__cdecl‘ C:\Program Files (x86)\Windows Kits\10\include\10.0.10240.0\ucrt\inttypes.h(63): error C2143: syntax error: missing ‘{‘ before ‘__cdecl‘ C:\Program Files (x86)\Windows Kits\10\include\10.0.10240.0\ucrt\inttypes.h(69): error C2143: syntax error: missing ‘{‘ before ‘__cdecl‘ C:\Program Files (x86)\Windows Kits\10\include\10.0.10240.0\ucrt\inttypes.h(76): error C2143: syntax error: missing ‘{‘ before ‘__cdecl‘ C:\Program Files (x86)\Windows Kits\10\include\10.0.10240.0\ucrt\inttypes.h(82): error C2143: syntax error: missing ‘{‘ before ‘__cdecl‘ C:\Program Files (x86)\Windows Kits\10\include\10.0.10240.0\ucrt\inttypes.h(89): error C2143: syntax error: missing ‘{‘ before ‘__cdecl‘ C:\Program Files (x86)\Windows Kits\10\include\10.0.10240.0\ucrt\inttypes.h(95): error C2143: syntax error: missing ‘{‘ before ‘__cdecl‘ error: command ‘C:\\Program Files (x86)\\Microsoft Visual Studio 14.0\\VC\\BIN\\x86_amd64\\cl.exe‘ failed with exit status 2 

4.解决building ‘Crypto.Random.OSRNG.winrandom‘ extension

1.添加VC环境变量，设置用户环境变量，这里划重点！！！是用户环境变量，不是系统环境变量

变量名：VCINSTALLDIR
（变量值为vs安装路径下的VC，默认是这个）
变量值：C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC
2. win+R运行cmd，执行命令set CL=/FI”%VCINSTALLDIR%\INCLUDE\stdint.h” %CL%
3. 再次进入pycryto的解压文件夹python setup.py install ，看到
能显示running install_egg_info 就是安装成功了

5.注意是Crypto还是crypto,区分大小写

我这里安装成功之后代码alt+enter自动关联的是

from crypto.Cipher import AES 

然后代码运行报错，点进去AES里面import的是

from Crypto.Cipher import _AES