如何在Windows上安装pyodbc以与Python 3.8一起使用？

Question

我在安装pyodbc时出错，我正在研究该问题，也许是它的c ++重新分发安装问题，但是即使使用c ++重新分发安装也已更新了问题oc

尝试安装pyodbc时遵循错误

C:\Users\MacInBox>pip install pyodbc
Collecting pyodbc
  Using cached https://files.pythonhosted.org/packages/75/29/aa190749bac37ede0f11a68a75e7055254699c11572bd94213f1163dfd8f/pyodbc-4.0.27.tar.gz
Installing collected packages: pyodbc
    Running setup.py install for pyodbc ... error
    ERROR: Command errored out with exit status 1:
     command: 'c:\users\macinbox\appdata\local\programs\python\python38-32\python.exe' -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'C:\\Users\\MacInBox\\AppData\\Local\\Temp\\pip-install-ysm4ul3_\\pyodbc\\setup.py'"'"'; __file__='"'"'C:\\Users\\MacInBox\\AppData\\Local\\Temp\\pip-install-ysm4ul3_\\pyodbc\\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\MacInBox\AppData\Local\Temp\pip-record-fzctfb9u\install-record.txt' --single-version-externally-managed --compile
         cwd: C:\Users\MacInBox\AppData\Local\Temp\pip-install-ysm4ul3_\pyodbc\
    Complete output (12 lines):
    running install
    running build
    running build_ext
    building 'pyodbc' extension
    creating build
    creating build\temp.win32-3.8
    creating build\temp.win32-3.8\Release
    creating build\temp.win32-3.8\Release\src
    C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.23.28105\bin\HostX86\x86\cl.exe /c /nologo /Ox /W3 /GL /DNDEBUG /MD -DPYODBC_VERSION=4.0.27 -Ic:\users\macinbox\appdata\local\programs\python\python38-32\include -Ic:\users\macinbox\appdata\local\programs\python\python38-32\include "-IC:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.23.28105\include" /EHsc /Tpsrc\buffer.cpp /Fobuild\temp.win32-3.8\Release\src\buffer.obj /Wall /wd4514 /wd4820 /wd4668 /wd4711 /wd4100 /wd4127 /wd4191
    buffer.cpp
    C:\Users\MacInBox\AppData\Local\Temp\pip-install-ysm4ul3_\pyodbc\src\pyodbc.h(19): fatal error C1083: NÆo ‚ poss¡vel abrir arquivo incluir: 'windows.h': No such file or directory
    error: command 'C:\\Program Files (x86)\\Microsoft Visual Studio\\2019\\Community\\VC\\Tools\\MSVC\\14.23.28105\\bin\\HostX86\\x86\\cl.exe' failed with exit status 2
    ----------------------------------------
ERROR: Command errored out with exit status 1: 'c:\users\macinbox\appdata\local\programs\python\python38-32\python.exe' -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'C:\\Users\\MacInBox\\AppData\\Local\\Temp\\pip-install-ysm4ul3_\\pyodbc\\setup.py'"'"'; __file__='"'"'C:\\Users\\MacInBox\\AppData\\Local\\Temp\\pip-install-ysm4ul3_\\pyodbc\\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\MacInBox\AppData\Local\Temp\pip-record-fzctfb9u\install-record.txt' --single-version-externally-managed --compile Check the logs for full command output.

这里是我的PC上安装的C ++重新分发

Answer 1

[当前，PiPI（pyodbc 4.0.27）上的pyodbc没有适用于Python 3.8的wheel文件，因此，当您执行pip install pyodbc时，pip会尝试从源代码构建pyodbc。为此，您不需要C ++ redistributables，而您需要C ++ compiler。

几乎可以肯定，pyodbc的下一版本将为Python 3.8预先编译好wheel文件。同时，您可以从[

下载所需的滚轮文件

https://www.lfd.uci.edu/~gohlke/pythonlibs/#pyodbc

然后使用]安装它>

pip install C:\path\to\pyodbc-4.0.27-cp38-cp38-win32.whl