SERVER_NAME not found in HttpRequest() in VS2019 about django-request

[felixxm]

Can you attach a full traceback?

[billyquith]

Can you attach a full traceback?

Thanks for the reply. After trying to work around this several different ways I switched to the "legacy" VS2019 Python debugger and the problem appears to disappear. I don't know what the difference is between the debuggers but the newer one appears to do something that causes the initialisation/construction of Python to go wrong.

The first issue is in settings:

Message='SERVER_NAME'
  Source=C:\Tools\Web\myweb\mywebApp\apps\request\settings.py
  StackTrace:
  File "C:\Tools\Web\myweb\mywebApp\apps\request\settings.py", line 40, in <module> (Current frame)
    BASE_URL = getattr(settings, 'REQUEST_BASE_URL', 'http://{0}'.format(get_current_site(HttpRequest()).domain))
  File "C:\Tools\Web\myweb\mywebApp\apps\request\models.py", line 9, in <module>
    from . import settings as request_settings
  File "C:\Tools\Web\myweb\mywebApp\manage.py", line 24, in <module>
    execute_from_command_line(sys.argv)

If I skip that I get:

Message='super' object has no attribute '__getattr__'
  Source=C:\Tools\Web\myweb\mywebApp\apps\request\managers.py
  StackTrace:
  File "C:\Tools\Web\myweb\mywebApp\apps\request\managers.py", line 106, in __getattr__ (Current frame)
    super().__getattr__(*args, **kwargs)
  File "C:\Tools\Web\myweb\mywebApp\apps\request\models.py", line 16, in <module>
    class Request(models.Model):
  File "C:\Tools\Web\myweb\mywebApp\manage.py", line 24, in <module>
    execute_from_command_line(sys.argv)

[billyquith]

It would be nice to use the newer debugger as it appears to be a lot faster.

Docs:

Visual Studio 2017 versions 15.8 and later use a debugger based on ptvsd version 4.1+. Visual Studio 2019 versions 16.5 and later use a debugger based on debugpy. These versions of the debugger are compatible with Python 2.7 and Python 3.5+.

[billyquith]

I guess this is a bug with debugpy. Not 100% sure though.

[billyquith]

I upgraded debugpy to 1.6.0 from 1.2.0 and still get issues. I can runserver from the command-line without issues, but in VS2019 I get, as before:

Message='super' object has no attribute '__getattr__'
  Source=C:\Tools\Web\MyWeb\MyWebApp\apps\request\managers.py
  StackTrace:
  File "C:\Tools\Web\MyWeb\MyWebApp\apps\request\managers.py", line 106, in __getattr__ (Current frame)
    super().__getattr__(*args, **kwargs)
  File "C:\Tools\Web\MyWeb\MyWebApp\apps\request\models.py", line 16, in <module>
    class Request(models.Model):
  File "C:\Tools\Web\MyWeb\MyWebApp\manage.py", line 24, in <module>
    execute_from_command_line(sys.argv)

Not getting the SERVER_NAME issue now though.