django 3 - 导入 ipdb； ipdb.set_trace() - 运行时错误

Question

刚刚安装了django-3.0，我习惯插入ipdb来停止运行时和检查功能。对于以前的版本，它工作正常。有什么办法让它工作吗？

> /home/tec1/workspace/static_site/stagen/hmi/views.py(11)dispatch()
     10     def dispatch(self, request, *args, **kwargs):
---> 11         import ipdb; ipdb.set_trace()
     12 

127.0.0.1 - - [11/Dec/2019 15:52:07] "GET /pg/blog/g/ HTTP/1.1" 500 -
Traceback (most recent call last):
  File "/home/tec1/.local/share/virtualenvs/static_site-l8CYf1lN/lib/python3.7/site-packages/django/contrib/staticfiles/handlers.py", line 68, in __call__
    return self.application(environ, start_response)
  File "/home/tec1/.local/share/virtualenvs/static_site-l8CYf1lN/lib/python3.7/site-packages/django/core/handlers/wsgi.py", line 133, in __call__
    response = self.get_response(request)
  File "/home/tec1/.local/share/virtualenvs/static_site-l8CYf1lN/lib/python3.7/site-packages/django/core/handlers/base.py", line 75, in get_response
    response = self._middleware_chain(request)
  File "/home/tec1/.local/share/virtualenvs/static_site-l8CYf1lN/lib/python3.7/site-packages/django/core/handlers/exception.py", line 34, in inner
    response = get_response(request)
  File "/home/tec1/.local/share/virtualenvs/static_site-l8CYf1lN/lib/python3.7/site-packages/django/core/handlers/exception.py", line 90, in response_for_exception
    response = handle_uncaught_exception(request, get_resolver(get_urlconf()), sys.exc_info())
  File "/home/tec1/.local/share/virtualenvs/static_site-l8CYf1lN/lib/python3.7/site-packages/django/core/handlers/exception.py", line 125, in handle_uncaught_exception
    return debug.technical_500_response(request, *exc_info)
  File "/home/tec1/.local/share/virtualenvs/static_site-l8CYf1lN/lib/python3.7/site-packages/django_extensions/management/technical_response.py", line 37, in null_technical_500_response
    six.reraise(exc_type, exc_value, tb)
  File "/home/tec1/.local/share/virtualenvs/static_site-l8CYf1lN/lib/python3.7/site-packages/six.py", line 695, in reraise
    raise value.with_traceback(tb)
  File "/home/tec1/.local/share/virtualenvs/static_site-l8CYf1lN/lib/python3.7/site-packages/django/core/handlers/exception.py", line 34, in inner
    response = get_response(request)
  File "/home/tec1/.local/share/virtualenvs/static_site-l8CYf1lN/lib/python3.7/site-packages/django/core/handlers/base.py", line 113, in _get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)
  File "/home/tec1/.local/share/virtualenvs/static_site-l8CYf1lN/lib/python3.7/site-packages/django/core/handlers/base.py", line 113, in _get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)
  File "/home/tec1/.local/share/virtualenvs/static_site-l8CYf1lN/lib/python3.7/site-packages/django/views/generic/base.py", line 71, in view
    return self.dispatch(request, *args, **kwargs)
  File "/home/tec1/workspace/static_site/stagen/hmi/views.py", line 11, in dispatch
    import ipdb; ipdb.set_trace()
  File "/usr/lib/python3.7/bdb.py", line 92, in trace_dispatch
    return self.dispatch_return(frame, arg)
  File "/usr/lib/python3.7/bdb.py", line 151, in dispatch_return
    self.user_return(frame, arg)
  File "/usr/lib/python3.7/pdb.py", line 291, in user_return
    self.interaction(frame, None)
  File "/home/tec1/.local/share/virtualenvs/static_site-l8CYf1lN/lib/python3.7/site-packages/IPython/core/debugger.py", line 294, in interaction
    OldPdb.interaction(self, frame, traceback)
  File "/home/tec1/.local/share/virtualenvs/static_site-l8CYf1lN/lib/python3.7/site-packages/pdb.py", line 231, in interaction

  File "/usr/lib/python3.7/pdb.py", line 319, in _cmdloop
    self.cmdloop()
  File "/home/tec1/.local/share/virtualenvs/static_site-l8CYf1lN/lib/python3.7/site-packages/IPython/terminal/debugger.py", line 97, in cmdloop
    line = self.pt_app.prompt() # reset_current_buffer=True)
  File "/home/tec1/.local/share/virtualenvs/static_site-l8CYf1lN/lib/python3.7/site-packages/prompt_toolkit/shortcuts/prompt.py", line 986, in prompt
    return self.app.run()
  File "/home/tec1/.local/share/virtualenvs/static_site-l8CYf1lN/lib/python3.7/site-packages/prompt_toolkit/application/application.py", line 788, in run
    return get_event_loop().run_until_complete(self.run_async(pre_run=pre_run))
  File "/usr/lib/python3.7/asyncio/events.py", line 644, in get_event_loop
    % threading.current_thread().name)
RuntimeError: There is no current event loop in thread 'Thread-2'.
127.0.0.1 - - [11/Dec/2019 15:52:07] "GET /pg/blog/g/?__debugger__=yes&cmd=resource&f=style.css HTTP/1.1" 200 -
127.0.0.1 - - [11/Dec/2019 15:52:07] "GET /pg/blog/g/?__debugger__=yes&cmd=resource&f=jquery.js HTTP/1.1" 200 -

Answer 1

我遇到了同样的问题。如果您使用的是 Python 3.7（根据您的跟踪，它看起来像您使用的）您可以改用新的 Python breakpoint()。

基本上，你会替换

import ipdb; ipdb.set_trace()

由

breakpoint()

检查 https://www.python.org/dev/peps/pep-0553/ 在那里你可以找到如何设置更多花哨的断点。

django 3 - 导入 ipdb； ipdb.set_trace() - 运行时错误

django 3 - import ipdb; ipdb.set_trace() - Runtime Error

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