pip install时报错

因为需要mysqlclient这个模块，但是在pip的时候报错

Collecting mysqlclient
  Using cached https://files.pythonhosted.org/packages/f4/f1/3bb6f64ca7a429729413e6556b7ba5976df06019a5245a43d36032f1061e/mysqlclient-1.4.2.post1.tar.gz
Building wheels for collected packages: mysqlclient
  Building wheel for mysqlclient (setup.py) ... error
  ERROR: Complete output from command 'c:userslibo3appdatalocalprogramspythonpython37-32python.exe' -u -c 'import setuptools, tokenize;__file__='"'"'C:\Users\libo3\AppData\Local\Temp\pip-install-dx_ukroi\mysqlclient\setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"' '"'"', '"'"' '"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' bdist_wheel -d 'C:Userslibo3AppDataLocalTemppip-wheel-rh1vf72j' --python-tag cp37:
  ERROR: running bdist_wheel
  running build
  running build_py
  creating build
  creating buildlib.win32-3.7
  creating buildlib.win32-3.7MySQLdb
  copying MySQLdb\__init__.py -> buildlib.win32-3.7MySQLdb
  copying MySQLdb\_exceptions.py -> buildlib.win32-3.7MySQLdb
  copying MySQLdbcompat.py -> buildlib.win32-3.7MySQLdb
  copying MySQLdbconnections.py -> buildlib.win32-3.7MySQLdb
  copying MySQLdbconverters.py -> buildlib.win32-3.7MySQLdb
  copying MySQLdbcursors.py -> buildlib.win32-3.7MySQLdb
  copying MySQLdb elease.py -> buildlib.win32-3.7MySQLdb
  copying MySQLdb imes.py -> buildlib.win32-3.7MySQLdb
  creating buildlib.win32-3.7MySQLdbconstants
  copying MySQLdbconstants\__init__.py -> buildlib.win32-3.7MySQLdbconstants
  copying MySQLdbconstantsCLIENT.py -> buildlib.win32-3.7MySQLdbconstants
  copying MySQLdbconstantsCR.py -> buildlib.win32-3.7MySQLdbconstants
  copying MySQLdbconstantsER.py -> buildlib.win32-3.7MySQLdbconstants
  copying MySQLdbconstantsFIELD_TYPE.py -> buildlib.win32-3.7MySQLdbconstants
  copying MySQLdbconstantsFLAG.py -> buildlib.win32-3.7MySQLdbconstants
  running build_ext
  building 'MySQLdb._mysql' extension
  error: Microsoft Visual C++ 14.0 is required. Get it with "Microsoft Visual C++ Build Tools": https://visualstudio.microsoft.com/downloads/
  ----------------------------------------
  ERROR: Failed building wheel for mysqlclient
  Running setup.py clean for mysqlclient
Failed to build mysqlclient
Installing collected packages: mysqlclient
  Running setup.py install for mysqlclient ... error
    ERROR: Complete output from command 'c:userslibo3appdatalocalprogramspythonpython37-32python.exe' -u -c 'import setuptools, tokenize;__file__='"'"'C:\Users\libo3\AppData\Local\Temp\pip-install-dx_ukroi\mysqlclient\setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"' '"'"', '"'"' '"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record 'C:Userslibo3AppDataLocalTemppip-record-etl1tmtlinstall-record.txt' --single-version-externally-managed --compile:
    ERROR: running install
    running build
    running build_py
    creating build
    creating buildlib.win32-3.7
    creating buildlib.win32-3.7MySQLdb
    copying MySQLdb\__init__.py -> buildlib.win32-3.7MySQLdb
    copying MySQLdb\_exceptions.py -> buildlib.win32-3.7MySQLdb
    copying MySQLdbcompat.py -> buildlib.win32-3.7MySQLdb
    copying MySQLdbconnections.py -> buildlib.win32-3.7MySQLdb
    copying MySQLdbconverters.py -> buildlib.win32-3.7MySQLdb
    copying MySQLdbcursors.py -> buildlib.win32-3.7MySQLdb
    copying MySQLdb elease.py -> buildlib.win32-3.7MySQLdb
    copying MySQLdb imes.py -> buildlib.win32-3.7MySQLdb
    creating buildlib.win32-3.7MySQLdbconstants
    copying MySQLdbconstants\__init__.py -> buildlib.win32-3.7MySQLdbconstants
    copying MySQLdbconstantsCLIENT.py -> buildlib.win32-3.7MySQLdbconstants
    copying MySQLdbconstantsCR.py -> buildlib.win32-3.7MySQLdbconstants
    copying MySQLdbconstantsER.py -> buildlib.win32-3.7MySQLdbconstants
    copying MySQLdbconstantsFIELD_TYPE.py -> buildlib.win32-3.7MySQLdbconstants
    copying MySQLdbconstantsFLAG.py -> buildlib.win32-3.7MySQLdbconstants
    running build_ext
    building 'MySQLdb._mysql' extension
    error: Microsoft Visual C++ 14.0 is required. Get it with "Microsoft Visual C++ Build Tools": https://visualstudio.microsoft.com/downloads/
    ----------------------------------------
ERROR: Command "'c:userslibo3appdatalocalprogramspythonpython37-32python.exe' -u -c 'import setuptools, tokenize;__file__='"'"'C:\Users\libo3\AppData\Local\Temp\pip-install-dx_ukroi\mysqlclient\setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"' '"'"', '"'"' '"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record 'C:Userslibo3AppDataLocalTemppip-record-etl1tmtlinstall-record.txt' --single-version-externally-managed --compile" failed with error code 1 in C:Userslibo3AppDataLocalTemppip-install-dx_ukroimysqlclient

如此一长串的错误，看的我头皮发麻，最后在网上看到别人也有类似错误，就Mark一下

首先先去这个网站https://www.lfd.uci.edu/~gohlke/pythonlibs/，找到要下的东西对应的版本，然后再cmd里打开下载的目录，pip install 你下载的文件就OK了