Python安装browsercookie模块错误

直接pip安装browsercookie出现错误，是因为browsercookie依赖的pycrypto模块安装失败，部分错误代码：

warning: GMP or MPIR library not found; Not building Crypto.PublicKey._fastmath.
building 'Crypto.Random.OSRNG.winrandom' extension
error: Microsoft Visual C++ 14.0 is required. Get it with "Microsoft Visual C++ Build Tools": http://landinghub.visualstudio.com/visual-cpp-build-tools

如果直接下载pycrypto后使用python setup.py install安装则又出现unable to find vcvarsall.bat错误。按照网上其他文章中的解决办法：先安装Visual Studio 2015，实在麻烦，下载好几个G不说，还不一定成功。

其实有更便捷的解决办法：使用pycryptodome代替pycrypto：pip install pycryptodome安装，再手动下载browsercookie，解压后python setup.py install安装即可。