如果我在PDB中，为什么不将Python记录模块显示我的记录到屏幕？

Question

我想让我的logging.info在 Python Debugger（PDB）和文件。但是，它没有出现在屏幕上。它可以在单独的python控制台中工作。为什么它在PDB中不起作用？请参阅：

bot@18f71e53b3f5:~/pycoq/tutorial$ python brandos_pycoq_tutorial.py
> /home/bot/pycoq/tutorial/brandos_pycoq_tutorial.py(142)<module>()
-> main()
(Pdb) import logging
(Pdb)
(Pdb) level    = logging.INFO
(Pdb) format   = '  %(message)s'
(Pdb) handlers = [logging.FileHandler('./filename.log'), logging.StreamHandler()]
(Pdb)
(Pdb) logging.basicConfig(level = level, format = format, handlers = handlers)
(Pdb) logging.info('Hey, this is working!')
(Pdb) --KeyboardInterrupt--
(Pdb)

在控制台中的作品：

bot@18f71e53b3f5:~/pycoq/tutorial$ python
Python 3.9.12 (main, Jun  1 2022, 11:38:51)
[GCC 7.5.0] :: Anaconda, Inc. on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import logging
>>>
>>> level    = logging.INFO
>>> format   = '  %(message)s'
>>> handlers = [logging.FileHandler('./filename.log'), logging.StreamHandler()]
>>>
>>> logging.basicConfig(level = level, format = format, handlers = handlers)
>>> logging.info('Hey, this is working!')
  Hey, this is working!
>>>
KeyboardInterrupt
>>>

该级别的设置正确如下所述：打印到屏幕上并同时写入文件

Answer 1

这可能是因为您的brandos_pycoq_tutorial.py脚本对sys.stderr做点事。如果在pdb中，它可以正常工作，如果您尝试过：

C:\Users\Vinay>python -c "import pdb; pdb.set_trace()"
--Return--
> <string>(1)<module>()->None
(Pdb) import logging
(Pdb) level = logging.INFO
(Pdb) format   = '  %(message)s'
(Pdb) handlers = [logging.FileHandler('./filename.log'), logging.StreamHandler()]
(Pdb) logging.basicConfig(level = level, format = format, handlers = handlers)
(Pdb) logging.info('Hey, this is working!')
  Hey, this is working!
(Pdb)

我在Windows中进行了此操作，但是我希望它能在其他平台上以相同的方式工作。