* url() is deprecated in Django 3.1
* update given feedbacks on url() is deprecated in Django 3.1
* Fix test_urlpatterns.py to continue testing mixed re_path() and path()
* Fix one missed reference
Co-authored-by: sanjusci <sanju.sci9@gmail.com>
Thanks to Jon Dufresne (@jdufresne) for review.
Co-authored-by: Asif Saif Uddin <auvipy@gmail.com>
Co-authored-by: Rizwan Mansuri <Rizwan@webbyfox.com>
Calling dict.keys() is unnecessary. The two are functionally equivalent
on modern Pythons.
Inspired by Lennart Regebro's talk "Prehistoric Patterns in Python" from
PyCon 2017.
https://www.youtube.com/watch?v=V5-JH23Vk0I
* Add Meta.fields = '__all__' to serializer classes where required.
* Add explicit on_delete=models.CASCADE to ForeignKey fields.
* Use '.remote_field' and '.model' in preference to '.rel' and '.to' when inspecting model fields.
* Use new value_from_object in preference to internal _get_val_from_obj
