Windows 环境下安装python包经常会有各种环境方面的问题及报错。
百度各种去安装whl文件
什么网站啊！！！！！！！！！！！！！！，下载就404 还这么多人推荐
然后各种找 找pip官网去下载 whl文件不行，只有64位的 然后去找国外一个什么什么网站不行还是安装不了
唉~~~~~~~~~~~~~~
接下来正确的方法来了
安装mysqlclient包时产生了下面的错误，不论是百度还是Stack Overflow上查找都没有真正的解决方案，于是写文章与大家一起分享下这类报错的解决方法。
Building wheels for collected packages: mysqlclient
Running setup.py bdist_wheel for mysqlclient ... error
Complete output from command "d:\program files\python\python36\python.exe" -u -c "import setuptools, tokenize;__file__='C:\\Users\\zdl25\\AppData\\Local\\Temp\\pip-install-83rodr64\\mysqlclient\\setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" bdist_wheel -d C:\Users\zdl25\AppData\Local\Temp\pip-wheel-nlo8hs6x --python-tag cp36:
running bdist_wheel
running build
running build_py
creating build
creating build\lib.win-amd64-3.6
copying _mysql_exceptions.py -> build\lib.win-amd64-3.6
creating build\lib.win-amd64-3.6\MySQLdb
copying MySQLdb\__init__.py -> build\lib.win-amd64-3.6\MySQLdb
copying MySQLdb\compat.py -> build\lib.win-amd64-3.6\MySQLdb
copying MySQLdb\connections.py -> build\lib.win-amd64-3.6\MySQLdb
copying MySQLdb\converters.py -> build\lib.win-amd64-3.6\MySQLdb
copying MySQLdb\cursors.py -> build\lib.win-amd64-3.6\MySQLdb
copying MySQLdb\release.py -> build\lib.win-amd64-3.6\MySQLdb
copying MySQLdb\times.py -> build\lib.win-amd64-3.6\MySQLdb
creating build\lib.win-amd64-3.6\MySQLdb\constants
copying MySQLdb\constants\__init__.py -> build\lib.win-amd64-3.6\MySQLdb\constants
copying MySQLdb\constants\CLIENT.py -> build\lib.win-amd64-3.6\MySQLdb\constants
copying MySQLdb\constants\CR.py -> build\lib.win-amd64-3.6\MySQLdb\constants
copying MySQLdb\constants\ER.py -> build\lib.win-amd64-3.6\MySQLdb\constants
copying MySQLdb\constants\FIELD_TYPE.py -> build\lib.win-amd64-3.6\MySQLdb\constants
copying MySQLdb\constants\FLAG.py -> build\lib.win-amd64-3.6\MySQLdb\constants
copying MySQLdb\constants\REFRESH.py -> build\lib.win-amd64-3.6\MySQLdb\constants
running build_ext
building '_mysql' extension
creating build\temp.win-amd64-3.6
creating build\temp.win-amd64-3.6\Release
C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.15.26726\bin\HostX86\x64\cl.exe /c /nologo /Ox /W3 /GL /DNDEBUG /MD -Dversion_info=(1,3,13,'final',0) -D__version__=1.3.13 "-IC:\Program Files (x86)\MySQL\MySQL Connector C 6.1\include" "-Id:\program files\python\python36\include" "-Id:\program files\python\python36\include" "-IC:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.15.26726\include" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.10240.0\ucrt" "-IC:\Program Files (x86)\Windows Kits\8.1\include\\shared" "-IC:\Program Files (x86)\Windows Kits\8.1\include\\um" "-IC:\Program Files (x86)\Windows Kits\8.1\include\\winrt" "-IC:\Program Files (x86)\Windows Kits\8.1\include\\cppwinrt" /Tc_mysql.c /Fobuild\temp.win-amd64-3.6\Release\_mysql.obj /Zl
_mysql.c
_mysql.c(29): fatal error C1083: 无法打开包括文件: “mysql.h”: No such file or directory
error: command 'C:\\Program Files (x86)\\Microsoft Visual Studio\\2017\\Community\\VC\\Tools\\MSVC\\14.15.26726\\bin\\HostX86\\x64\\cl.exe' failed with exit status 2
----------------------------------------
Failed building wheel for mysqlclient
Running setup.py clean for mysqlclient
Failed to build mysqlclient
Installing collected packages: mysqlclient
Found existing installation: mysqlclient 1.3.12
Uninstalling mysqlclient-1.3.12:
Successfully uninstalled mysqlclient-1.3.12
Running setup.py install for mysqlclient ... error
Complete output from command "d:\program files\python\python36\python.exe" -u -c "import setuptools, tokenize;__file__='C:\\Users\\zdl25\\AppData\\Local\\Temp\\pip-install-83rodr64\\mysqlclient\\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\zdl25\AppData\Local\Temp\pip-record-f544g5zo\install-record.txt --single-version-externally-managed --compile:
running install
running build
running build_py
creating build
creating build\lib.win-amd64-3.6
copying _mysql_exceptions.py -> build\lib.win-amd64-3.6
creating build\lib.win-amd64-3.6\MySQLdb
copying MySQLdb\__init__.py -> build\lib.win-amd64-3.6\MySQLdb
copying MySQLdb\compat.py -> build\lib.win-amd64-3.6\MySQLdb
copying MySQLdb\connections.py -> build\lib.win-amd64-3.6\MySQLdb
copying MySQLdb\converters.py -> build\lib.win-amd64-3.6\MySQLdb
copying MySQLdb\cursors.py -> build\lib.win-amd64-3.6\MySQLdb
copying MySQLdb\release.py -> build\lib.win-amd64-3.6\MySQLdb
copying MySQLdb\times.py -> build\lib.win-amd64-3.6\MySQLdb
creating build\lib.win-amd64-3.6\MySQLdb\constants
copying MySQLdb\constants\__init__.py -> build\lib.win-amd64-3.6\MySQLdb\constants
copying MySQLdb\constants\CLIENT.py -> build\lib.win-amd64-3.6\MySQLdb\constants
copying MySQLdb\constants\CR.py -> build\lib.win-amd64-3.6\MySQLdb\constants
copying MySQLdb\constants\ER.py -> build\lib.win-amd64-3.6\MySQLdb\constants
copying MySQLdb\constants\FIELD_TYPE.py -> build\lib.win-amd64-3.6\MySQLdb\constants
copying MySQLdb\constants\FLAG.py -> build\lib.win-amd64-3.6\MySQLdb\constants
copying MySQLdb\constants\REFRESH.py -> build\lib.win-amd64-3.6\MySQLdb\constants
running build_ext
building '_mysql' extension
creating build\temp.win-amd64-3.6
creating build\temp.win-amd64-3.6\Release
C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.15.26726\bin\HostX86\x64\cl.exe /c /nologo /Ox /W3 /GL /DNDEBUG /MD -Dversion_info=(1,3,13,'final',0) -D__version__=1.3.13 "-IC:\Program Files (x86)\MySQL\MySQL Connector C 6.1\include" "-Id:\program files\python\python36\include" "-Id:\program files\python\python36\include" "-IC:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.15.26726\include" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.10240.0\ucrt" "-IC:\Program Files (x86)\Windows Kits\8.1\include\\shared" "-IC:\Program Files (x86)\Windows Kits\8.1\include\\um" "-IC:\Program Files (x86)\Windows Kits\8.1\include\\winrt" "-IC:\Program Files (x86)\Windows Kits\8.1\include\\cppwinrt" /Tc_mysql.c /Fobuild\temp.win-amd64-3.6\Release\_mysql.obj /Zl
_mysql.c
_mysql.c(29): fatal error C1083: 无法打开包括文件: “mysql.h”: No such file or directory
error: command 'C:\\Program Files (x86)\\Microsoft Visual Studio\\2017\\Community\\VC\\Tools\\MSVC\\14.15.26726\\bin\\HostX86\\x64\\cl.exe' failed with exit status 2
----------------------------------------
Rolling back uninstall of mysqlclient
Command ""d:\program files\python\python36\python.exe" -u -c "import setuptools, tokenize;__file__='C:\\Users\\zdl25\\AppData\\Local\\Temp\\pip-install-83rodr64\\mysqlclient\\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\zdl25\AppData\Local\Temp\pip-record-f544g5zo\install-record.txt --single-version-externally-managed --compile" failed with error code 1 in C:\Users\zdl25\AppData\Local\Temp\pip-install-83rodr64\mysqlclient\
原因排查
此类问题需要真正的会看且有耐心去看报错信息，根据报错去分析和思考问题出在哪个环节上，然后一步一步缩减范围，锁定问题原因。cl.exe’ failed with exit status 2 基本上都是因为编译过程中缺少必要的依赖库文件所导致的。缺少哪个类库文件，上面的报错信息会有指出来—— _mysql.c(29): fatal error C1083: 无法打开包括文件: “mysql.h”: No such file or directory。 所以此次报错的原因就出来了，缺少了 mysql.h 这个头文件。
找了半天资料发现，需要去下载 MySQL Connector6.1
继续安装结果还是报错
上面的报错信息我们从下往上倒推，在“mysql.h”: No such file or directory这行往上第二行，
报错中的 -IC:\Program Files (x86)\MySQL\MySQL Connector C 6.1\include\mariadb，
坑爹我们安装的MySQL Connector6.1 文件目录没有mariadb ，只能手动新建一个mariadb文件夹 然后将C:\Program Files (x86)\MySQL\MySQL Connector C 6.1\include下的文件复制到mariadb文件夹内
继续
pip install mysqlclient
结果还是出错
找不到mariadbclient.lib 这个文件
然后继续查找错误 发现C:\Program Files (x86)\MySQL\MySQL Connector C 6.1\lib\mariadb 我们安装的目录没有mariadb
只能自己在手动新建文件夹一个了然后我居然搜索全部目录没找到mariadbclient.lib这个文件
…
…
最后只能尝试 C:\Program Files (x86)\MySQL\MySQL Connector C 6.1\lib\vs14 里面的文件mysqlclient.lib 改成
mariadbclient.lib 这个名字，再放到mariadb 文件内 然后
pip install mysqlclient
居然就成功了！！！！！！！！！！！