每当我尝试为python模块安装mysql时，此错误是什么？

Question

我尝试了2个命令：

pip install mysql-python

和

pip install mysqlclient

pip install mysql-python的错误

Command "C:\Users\Pops\Desktop\Martin\Programming\Python\venv\Scripts\python.exe -u -c "import setuptools, tokenize;__file__='C:\\Users\\Pops\\AppData\\Local\\Temp\\pip-install-zfndvw17\\mysql-python
\\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\Pops\AppData\Local\Temp\pip-reco
rd-jpu7d9zb\install-record.txt --single-version-externally-managed --compile --install-headers C:\Users\Pops\Desktop\Martin\Programming\Python\venv\include\site\python3.7\mysql-python" failed with er
ror code 1 in C:\Users\Pops\AppData\Local\Temp\pip-install-zfndvw17\mysql-python\

pip install mysqlclient的错误

Command "C:\Users\Pops\Desktop\Martin\Programming\Python\venv\Scripts\python.exe -u -c "import setuptools, tokenize;__file__='C:\\Users\\Pops\\AppData\\Local\\Temp\\pip-install-cn_nm0np\\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\Pops\AppData\Local\Temp\pip-recor
d-lyzr49kh\install-record.txt --single-version-externally-managed --compile --install-headers C:\Users\Pops\Desktop\Martin\Programming\Python\venv\include\site\python3.7\mysqlclient" failed with erro
r code 1 in C:\Users\Pops\AppData\Local\Temp\pip-install-cn_nm0np\mysqlclient\

这是下载部分，似乎可以正常工作到最后。 （只需将其放在此处以填充更多非代码文本，以使stackoverflow接受修订）

错误前的顶部：

Collecting mysqlclient
  Downloading https://files.pythonhosted.org/packages/ec/fd/83329b9d3e14f7344d1cb31f128e6dbba70c5975c9e57896815dbb1988ad/mysqlclient-1.3.13.tar.gz (90kB)
    100% |████████████████████████████████| 92kB 168kB/s
Installing collected packages: mysqlclient
  Running setup.py install for mysqlclient ... error
    Complete output from command C:\Users\Pops\Desktop\Martin\Programming\Python\venv\Scripts\python.exe -u -c "import setuptools, tokenize;__file__='C:\\Users\\Pops\\AppData\\Local\\Temp\\pip-instal
l-cn_nm0np\\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\Pops\AppD
ata\Local\Temp\pip-record-lyzr49kh\install-record.txt --single-version-externally-managed --compile --install-headers C:\Users\Pops\Desktop\Martin\Programming\Python\venv\include\site\python3.7\mysql
client:
    C:\Users\Pops\AppData\Local\Programs\Python\Python37-32\lib\distutils\dist.py:274: UserWarning: Unknown distribution option: 'long_description_content_type'
      warnings.warn(msg)
    running install
    running build
    running build_py
    creating build
    creating build\lib.win32-3.7
    copying _mysql_exceptions.py -> build\lib.win32-3.7
    creating build\lib.win32-3.7\MySQLdb
    copying MySQLdb\__init__.py -> build\lib.win32-3.7\MySQLdb
    copying MySQLdb\compat.py -> build\lib.win32-3.7\MySQLdb
    copying MySQLdb\connections.py -> build\lib.win32-3.7\MySQLdb
    copying MySQLdb\converters.py -> build\lib.win32-3.7\MySQLdb
    copying MySQLdb\cursors.py -> build\lib.win32-3.7\MySQLdb
    copying MySQLdb\release.py -> build\lib.win32-3.7\MySQLdb
    copying MySQLdb\times.py -> build\lib.win32-3.7\MySQLdb
    creating build\lib.win32-3.7\MySQLdb\constants
    copying MySQLdb\constants\__init__.py -> build\lib.win32-3.7\MySQLdb\constants
    copying MySQLdb\constants\CLIENT.py -> build\lib.win32-3.7\MySQLdb\constants
    copying MySQLdb\constants\CR.py -> build\lib.win32-3.7\MySQLdb\constants
    copying MySQLdb\constants\ER.py -> build\lib.win32-3.7\MySQLdb\constants
    copying MySQLdb\constants\FIELD_TYPE.py -> build\lib.win32-3.7\MySQLdb\constants
    copying MySQLdb\constants\FLAG.py -> build\lib.win32-3.7\MySQLdb\constants
    copying MySQLdb\constants\REFRESH.py -> build\lib.win32-3.7\MySQLdb\constants
    running build_ext
    building '_mysql' extension
    creating build\temp.win32-3.7
    creating build\temp.win32-3.7\Release
    cl.exe /c /nologo /Ox /W3 /GL /DNDEBUG /MT -Dversion_info=(1,3,13,'final',0) -D__version__=1.3.13 "-IC:\Program Files (x86)\MySQL\MySQL Connector C 6.1\include" -IC:\Users\Pops\Desktop\Martin\Pro
gramming\Python\venv\include -IC:\Users\Pops\AppData\Local\Programs\Python\Python37-32\include -IC:\Users\Pops\AppData\Local\Programs\Python\Python37-32\include "-IC:\Program Files (x86)\Windows Kits
\10\include\10.0.16299.0\shared" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\um" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\winrt" "-IC:\Program Files (x86)\Win
dows Kits\10\include\10.0.16299.0\ucrt" "-IC:\Program Files (x86)\Windows Kits\NETFXSDK\4.6.1\include\um" /Tc_mysql.c /Fobuild\temp.win32-3.7\Release\_mysql.obj /Zl
    error: command 'cl.exe' failed: No such file or directory
----------------------------------------

Answer 1

您必须将 cl.exe 添加到 PATH 中。它通常位于（Visual Studio文件夹）\ VC \ bin 目录中。使用here中的步骤将其添加到PATH变量中。 重新启动命令提示符后，您可以从命令提示符中使用cl.exe。

或者，您可以从https://www.lfd.uci.edu/~gohlke/pythonlibs/#mysqlclient下载mysqlclient的非官方Windows二进制文件。并使用 pip安装“下载的whl文件的路径”

Answer 2

正如我在评论中提到的，您需要cl.exe文件夹。 您可以通过Visual Studio安装程序来完成。 安装以下C ++编译器：