Add new tests to exercise the new autodoc_typehint_undoc option. Where
an existing test would have a meaningful behavior change with the new
option set to False, that test is copied, the new option is set to False
in the copy, and the assertions reflect the new expected behavior.
The new test test_autodoc_typehints_description_with_documented_init
illustrates the problem reported in #7329, and the new test
test_autodoc_typehints_description_with_documented_init_no_undoc
illustrates that this issue no longer occurs when the new
autodoc_typehint_undoc option is set to False.
As a well-known idiom, mypy recommends to use ellipsis ("...") for
default argument values as a elided style. This allows to write the
style and helps to document it with copying the default argument
values from actual implementation.
Note: This does not copy the default argument value when the argument
of overloaded function has its own default value.
So far, autodoc obtains type annotations of instance attributes by
ModuleAnalyzer directly. As a result, autodoc_type_aliases are ignored
for these variables.
This goes to merge type annotations from the class itself and
ModuleAnalyzer's, and get type annotations using `typing.get_type_hints()`
to apply autodoc_type_aliases.
Keep imports alphabetically sorted and their order homogeneous across
Python source files.
The isort project has more feature and is more active than the
flake8-import-order plugin.
Most issues caught were simply import ordering from the same module.
Where imports were purposefully placed out of order, tag with
isort:skip.
As typing.get_type_hints() doing, this adds Optional[t] to type
annotations if a default value equal to None is set.
Note: this is default behavior of inspect.signature() since Python 3.10.
Usually we use "Any" type for the type annotation which takes any kinds
of types, instead of "object" class. So this replaces "object" to "Any"
in our example.
This fixes:
* Signatures defined by __new__
* Signatures defined by metaclasses
* Signatures defined by builtin base classes
All of these changes bring the sphinx docs inline with the behavior of `inspect.signature`.
Note that this changes autodoc to output `.. py:class: MyClass()` with parentheses even if no user-defined __init__ is present.
This is quite deliberate, as if no user-defined `__init__` is present the default is `object.__init__`, which indeed does not take arguments.
