$ pip install mysqlclientではエラーを吐いてインストールできなかったので、やったことメモ。
コンソールからpipすると、以下のような感じでエラーになってしまいます。
> pip install mysqlclient
Collecting mysqlclient
Using cached mysqlclient-2.2.0.tar.gz (89 kB)
Installing build dependencies ... done
Getting requirements to build wheel ... done
Installing backend dependencies ... done
Preparing metadata (pyproject.toml) ... done
Building wheels for collected packages: mysqlclient
Building wheel for mysqlclient (pyproject.toml) ... error
error: subprocess-exited-with-error
× Building wheel for mysqlclient (pyproject.toml) did not run successfully.
│ exit code: 1
╰─> [46 lines of output]
# Options for building extention module:
library_dirs: ['C:/mariadb-connector\\lib\\mariadb', 'C:/mariadb-connector\\lib']
libraries: ['kernel32', 'advapi32', 'wsock32', 'shlwapi', 'Ws2_32', 'crypt32', 'secur32', 'bcrypt', 'mariadbclient']
extra_link_args: ['/MANIFEST']
include_dirs: ['C:/mariadb-connector\\include\\mariadb', 'C:/mariadb-connector\\include']
extra_objects: []
define_macros: [('version_info', (2, 2, 0, 'final', 0)), ('__version__', '2.2.0')]
running bdist_wheel
running build
running build_py
creating build
creating build\lib.win-amd64-cpython-312
creating build\lib.win-amd64-cpython-312\MySQLdb
copying src\MySQLdb\connections.py -> build\lib.win-amd64-cpython-312\MySQLdb
copying src\MySQLdb\converters.py -> build\lib.win-amd64-cpython-312\MySQLdb
copying src\MySQLdb\cursors.py -> build\lib.win-amd64-cpython-312\MySQLdb
copying src\MySQLdb\release.py -> build\lib.win-amd64-cpython-312\MySQLdb
copying src\MySQLdb\times.py -> build\lib.win-amd64-cpython-312\MySQLdb
copying src\MySQLdb\_exceptions.py -> build\lib.win-amd64-cpython-312\MySQLdb
copying src\MySQLdb\__init__.py -> build\lib.win-amd64-cpython-312\MySQLdb
creating build\lib.win-amd64-cpython-312\MySQLdb\constants
copying src\MySQLdb\constants\CLIENT.py -> build\lib.win-amd64-cpython-312\MySQLdb\constants
copying src\MySQLdb\constants\CR.py -> build\lib.win-amd64-cpython-312\MySQLdb\constants
copying src\MySQLdb\constants\ER.py -> build\lib.win-amd64-cpython-312\MySQLdb\constants
copying src\MySQLdb\constants\FIELD_TYPE.py -> build\lib.win-amd64-cpython-312\MySQLdb\constants
copying src\MySQLdb\constants\FLAG.py -> build\lib.win-amd64-cpython-312\MySQLdb\constants
copying src\MySQLdb\constants\__init__.py -> build\lib.win-amd64-cpython-312\MySQLdb\constants
running egg_info
writing src\mysqlclient.egg-info\PKG-INFO
writing dependency_links to src\mysqlclient.egg-info\dependency_links.txt
writing top-level names to src\mysqlclient.egg-info\top_level.txt
reading manifest file 'src\mysqlclient.egg-info\SOURCES.txt'
reading manifest template 'MANIFEST.in'
adding license file 'LICENSE'
writing manifest file 'src\mysqlclient.egg-info\SOURCES.txt'
copying src\MySQLdb\_mysql.c -> build\lib.win-amd64-cpython-312\MySQLdb
running build_ext
building 'MySQLdb._mysql' extension
creating build\temp.win-amd64-cpython-312
creating build\temp.win-amd64-cpython-312\Release
creating build\temp.win-amd64-cpython-312\Release\src
creating build\temp.win-amd64-cpython-312\Release\src\MySQLdb
"C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.37.32822\bin\HostX86\x64\cl.exe" /c /nologo /O2 /W3 /GL /DNDEBUG /MD "-Dversion_info=(2, 2, 0, 'final', 0)" -D__version__=2.2.0 -IC:/mariadb-connector\include\mariadb -IC:/mariadb-connector\include -IC:\Apps\Python312\include -IC:\Apps\Python312\Include "-IC:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.37.32822\include" "-IC:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.37.32822\ATLMFC\include" "-IC:\Program Files\Microsoft Visual Studio\2022\Community\VC\Auxiliary\VS\include" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.22621.0\ucrt" "-IC:\Program Files (x86)\Windows Kits\10\\include\10.0.22621.0\\um" "-IC:\Program Files (x86)\Windows Kits\10\\include\10.0.22621.0\\shared" "-IC:\Program Files (x86)\Windows Kits\10\\include\10.0.22621.0\\winrt" "-IC:\Program Files (x86)\Windows Kits\10\\include\10.0.22621.0\\cppwinrt" "-IC:\Program Files (x86)\Windows Kits\NETFXSDK\4.8\include\um" /Tcsrc/MySQLdb/_mysql.c /Fobuild\temp.win-amd64-cpython-312\Release\src/MySQLdb/_mysql.obj
_mysql.c
src/MySQLdb/_mysql.c(29): fatal error C1083: include ファイルを開けません。'mysql.h':No such file or directory
error: command 'C:\\Program Files\\Microsoft Visual Studio\\2022\\Community\\VC\\Tools\\MSVC\\14.37.32822\\bin\\HostX86\\x64\\cl.exe' failed with exit code 2
[end of output]
note: This error originates from a subprocess, and is likely not a problem with pip.
ERROR: Failed building wheel for mysqlclient
Failed to build mysqlclient
ERROR: Could not build wheels for mysqlclient, which is required to install pyproject.toml-based projects
PyPIのmysqlclientのページには、wheelがどっかにあるのでそれ使ってね、でももし使ってるバージョンのPython用のバイナリがなければ、自分でビルドしてね、と書いてあります。To build from source, download the MariaDB C Connector and install it. It must be installed in the default location (usually "C:\Program Files\MariaDB\MariaDB Connector C" or "C:\Program Files (x86)\MariaDB\MariaDB Connector C" for 32-bit).なので、上記のリンクから MariaDB Connector/C の Windows 64bit 用をダウンロードしてインストールします。
ところが、上記のエラーメッセージを見ると、ヘッダファイルとライブラリを探しにくのは
'C:/mariadb-connector' となっているので、デフォルトの 'C:/Program Files/mariadb-connector/MariaDB/MariaDB Connector C 64-bit'へは探しに行ってくれません。別の場所にインストールしたら環境変数
MYSQLCLIENT_CONNECTOR を設定しろと書いてありますが、それもめんどくさいので、指定されている 'C:/mariadb-connector' に中身をまるごとコピーしてから pip します。> pip install mysqlclient Collecting mysqlclient Using cached mysqlclient-2.2.0.tar.gz (89 kB) Installing build dependencies ... done Getting requirements to build wheel ... done Installing backend dependencies ... done Preparing metadata (pyproject.toml) ... done Building wheels for collected packages: mysqlclient Building wheel for mysqlclient (pyproject.toml) ... done Created wheel for mysqlclient: filename=mysqlclient-2.2.0-cp312-cp312-win_amd64.whl size=193628 sha256=1f5f38e2b183905d5b39f7edf7542c7b530123c3031016a460379cbc50d45de1 Stored in directory: c:\users\kats\appdata\local\pip\cache\wheels\03\31\a0\f0056b8be9d1dc4eb1287b268b5d5dbbe0b206362d8aa35967 Successfully built mysqlclient Installing collected packages: mysqlclient Successfully installed mysqlclient-2.2.0ということでインストールできました。…などと書いている途中で、MariaDBなどというパッケージを見つけてしまいました。
どっちがいいんでしょうか…。
ついでにもうちょっと探したら、PyMySQLというのも見つけました。どうやら皆さん、こちらを使っている模様。
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