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( Y; S8 U6 D2 MC:\Users\admin\AppData\Local\Programs\Python\Python312\python.exe -m flask run -h 0.0.0.0 -p 5000 Usage: python -m flask run [OPTIONS]Try 'python -m flask run --help' for help.Error: While importing 'app', an ImportError was raised:Traceback (most recent call last): File "C:\Users\admin\AppData\Local\Programs\Python\Python312\Lib\site-packages\flask\cli.py", line 245, in locate_app __import__(module_name) File "C:\Users\admin\Desktop\new_flask\app.py", line 11, in <module> db = SQLAlchemy(app) ^^^^^^^^^^^^^^^ File "C:\Users\admin\AppData\Local\Programs\Python\Python312\Lib\site-packages\flask_sqlalchemy\extension.py", line 278, in __init__ self.init_app(app) File "C:\Users\admin\AppData\Local\Programs\Python\Python312\Lib\site-packages\flask_sqlalchemy\extension.py", line 374, in init_app engines[key] = self._make_engine(key, options, app) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Users\admin\AppData\Local\Programs\Python\Python312\Lib\site-packages\flask_sqlalchemy\extension.py", line 665, in _make_engine return sa.engine_from_config(options, prefix="") ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Users\admin\AppData\Local\Programs\Python\Python312\Lib\site-packages\sqlalchemy\engine\create.py", line 820, in engine_from_config return create_engine(url, **options) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "<string>", line 2, in create_engine File "C:\Users\admin\AppData\Local\Programs\Python\Python312\Lib\site-packages\sqlalchemy\util\deprecations.py", line 281, in warned return fn(*args, **kwargs) # type: ignore[no-any-return] ^^^^^^^^^^^^^^^^^^^ File "C:\Users\admin\AppData\Local\Programs\Python\Python312\Lib\site-packages\sqlalchemy\engine\create.py", line 599, in create_engine dbapi = dbapi_meth(**dbapi_args) ^^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Users\admin\AppData\Local\Programs\Python\Python312\Lib\site-packages\sqlalchemy\dialects\mysql\mysqldb.py", line 147, in import_dbapi return __import__("MySQLdb") ^^^^^^^^^^^^^^^^^^^^^ModuleNotFoundError: No module named 'MySQLdb'% F* P& [1 U9 l8 z% u7 a
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[size=0.2]说明pip环境没有安装mysqlclient插件, d5 b8 O6 t6 f# ?9 S# z
7 N' y( i) {+ e( K2 A; G+ }+ H4 dModuleNotFoundError: No module named 'MySQLdb' 这个错误表明Python环境中没有找到名为MySQLdb的模块。这是因为MySQLdb是一个连接MySQL数据库的Python库，但它不是Python标准库的一部分，它需要单独安装。& ^$ y: I% e4 j! i/ Z# B0 J3 \' I
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安装MySQLdb模块。可以使用pip安装，在命令行中输入以下命令：2 t: p- B+ I2 S' Q4 {0 h
5 |% o0 d* p4 O) fpip install mysqlclient
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发表于 2024-7-11 09:39:32