The type bytes is available on all supported Pythons. On Python 2.7, it
is an alias for str, same as six.binary_type. Makes the code more
forward compatible with Python 3.
* Revert "Non-required fields with 'allow_null=True' should not imply a default value (#5639)"
This reverts commit 905a5579df.
Closes#5708
* Add test for allow_null + required=False
Ref #5708: allow_null should imply default=None, even for non-required fields.
* Re-order allow_null and default in field docs
default is prior to allow_null. allow_null implies an outgoing default=None.
* Adjust allow_null note.
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
* Adding rounding parameter to DecimalField.
* Using standard `assert` instead of `self.fail()`.
* add testcase and PEP8 multilines fix
* flake8 fixes
* Use decimal module constants in tests.
* Add docs note for `rounding` parameter.
* Update remaing `include` calls
Missed as part of #5481 cleanup.
* Provide app_name in include_docs_urls
* Update remaining get_regex_pattern usages
* Allow functools.partial in is_simple_callable check
* Identify code that needs to be pulled out of/removed from compat.py
* Extract modern code from get_names_and_managers in compat.py and remove compat code
* Extract modern code from is_authenticated() in compat.py and remove.
* Extract modern code from is_anonymous() in compat.py and remove
* Extract modern code from get_related_model() from compat.py and remove
* Extract modern code from value_from_object() in compat.py and remove
* Update postgres compat
JSONField now always available.
* Remove DecimalValidator compat
* Remove get_remote_field compat
* Remove template_render compat
Plus isort.
* Remove set_many compat
* Remove include compat
## Description
The `choices` field for the `ChoiceField` class should be able to be edited after `ChoiceField.__init__` is called.
```
field = ChoiceField(choices=[1,2])
field.choices = [1] # Should no longer allow `2` as a choice
```
Currently, you must update `choices`, `grouped_choices`, and `choice_strings_to_values` to achieve this. This P/R keeps `grouped_choices` and `choice_strings_to_values` in sync whenever the `choices` are edited.
* Add regression test for #2505. Thanks @pySilver!
* Add regression test for #5087
* Revert "Cached the field's root and context property."
This reverts commit 792005806b.
Python Reference:
distutils.util.strtobool(val)
Convert a string representation of truth to true (1) or false (0).
True values are y, yes, t, true, on and 1; false values are n, no, f, false, off and 0. Raises ValueError if val is anything else.
