【错误收集】

D:\myProgrom\ev\pythonnwe\python.exe D:\playwright_code\code\MY_PROJECT\backend.py 
Traceback (most recent call last):
  File "D:\playwright_code\code\MY_PROJECT\backend.py", line 2, in <module>
    from flask import Flask
  File "D:\myProgrom\ev\pythonnwe\Lib\site-packages\flask\__init__.py", line 5, in <module>
    from . import json as json
  File "D:\myProgrom\ev\pythonnwe\Lib\site-packages\flask\json\__init__.py", line 6, in <module>
    from ..globals import current_app
  File "D:\myProgrom\ev\pythonnwe\Lib\site-packages\flask\globals.py", line 6, in <module>
    from werkzeug.local import LocalProxy
ModuleNotFoundError: No module named 'werkzeug' 

【错误分析】

缺少werkzeug模块

【解决办法】

安装对应的模块

pip install werkzeug

Looking in indexes: https://pypi.tuna.tsinghua.edu.cn/simple
Collecting werkzeug
  Downloading https://pypi.tuna.tsinghua.edu.cn/packages/52/24/ab44c871b0f07f491e5d2ad12c9bd7358e527510618cb1b803a88e986db1/werkzeug-3.1.3-py3-none-any.whl (224 kB)
Installing collected packages: werkzeug
Successfully installed werkzeug-3.1.3
 

【运行结果】

.