Running help() against django.db.models.PositiveIntegerField results in error

[Brenden Hyde]

Issue Description:

As a Django user, I would like to read built-in docstrings for Django classes without having an existing Django project.

When creating a new Django project, it can be helpful to read the built-in docstrings for each class in a package before beginning. For example, if I have never used django.db.models.PositiveIntegerField and want to know what the "null" or "blank" kwargs do, I can open a Python or IPython REPL and type the following:

from django.db import models
help(models.PositiveIntegerField)

The above, in theory, should print the help doc for the PositiveIntegerField class. However, the current state of things causes a traceback instead:

ImproperlyConfigured: Requested setting USE_I18N, but settings are not configured. You must either define the environment variable DJANGO_SETTINGS_MODULE or call settings.configure() before accessing settings.

According to the Django ​docs, this issue is caused by not telling Django where your settings come from. However, if a user is just trying to read generic documentation for a given class, I don't think they should have to implement a concrete settings file first. Ideally, a user should be able to read these docs locally without creating anything at all. I realize that online documentation through the Django website is available, but it would be nice to be able to read the docstrings in a REPL.

Steps to Reproduce

1. Create a new virtual environment (I use pipenv, but any should work)
2. Install django~=4.0.0 and ipython to your virtualenv
3. open the ipython REPL by running "ipython" from the command line
4. In the REPL, run the following 2 lines of code:

from django.db import models
help(models.PositiveIntegerField)

5. The above should result in a traceback ending with this error message:

ImproperlyConfigured: Requested setting USE_I18N, but settings are not configured. You must either define the environment variable DJANGO_SETTINGS_MODULE or call settings.configure() before accessing settings.

[Tim Graham]

Thanks for the feedback. This is caused by translatable class attributes like description = _("Positive integer") which access the setting. I don't see a feasible solution, but these classes don't have docstrings anyway.