安装插件报错error: Microsoft Visual C++ 14.0 is required. Get it with "Microsoft Visual C++

起因：学到多线程greenlet模块时，greenlet模块死活装不上，以为pycharm坏掉了，浪费了一下午。

#pip3 install greenlet
from greenlet import greenlet
import time


def eat(name):
    print('%s eat 1' % name)
    # time.sleep(1)
    g2.switch('egon')
    print('%s eat 2' % name)
    g2.switch()


def play(name):
    print('%s play 1' % name)
    g1.switch()
    print('%s play 2' % name)


g1 = greenlet(eat)
g2 = greenlet(play)

g1.switch('egon')

报错如下：

error: Microsoft Visual C++ 14.0 is required. Get it with "Microsoft Visual C++ Build Tools": https://visualstudio.microsoft.com/downloads/

    ----------------------------------------
Command "e:\soft\python3.6_x64\python.exe -u -c "import setuptools, tokenize;__file__='C:\\Users\\RJ-TR19\\AppData\\Local\\Temp\\pip-build-q2fmqstd\\pycrypto\\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\RJ-TR19\AppData\Local\Temp\pip-dchg89ka-record\install-record.txt --
single-version-externally-managed --compile" failed with error code 1 in C:\Users\RJ-TR19\AppData\Local\Temp\pip-build-q2fmqstd\pycrypto\

最后的pycrypto说明缺少该包，需要安装

解决办法：

下载Microsoft Visual C++ 14.0

右键以管理员身份运行，选择默认方式安装即可，电脑也不用重启，直接pip安装所需要的插件就行

地址：https://pan.baidu.com/s/18bjsvBIgBAhn5_6ApMcFew 密码： zkzf