An enhanced version of the Python typing library.

Related tags

Linters & Style Checkerspythontypingcastpep484typehinting
Overview

typingplus

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An enhanced version of the Python typing library that always uses the latest version of typing available, regardless of which version of Python is in use.

Installation

Install it using pip:

pip install typingplus

Features

  • Contains all of the typing library, and is guaranteed to use the latest installed version of the typing library, even if the version of Python in use has an older version of typing.
  • typing_extensions is integrated to be as compatible with the future of the typing module as possible.
  • Support for comment type hints.
  • A functional cast function, including to the abstract types defined in the typing module.
  • An is_instance function that works with the abstract types defined in the typing module.
  • An upgrade_typing function that will replace the stdlib version of typing with the latest version from either the stdlib or the backport.

Usage

See PEP 484.

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Comments
  • Type comments with named default values are not returned.

    Type comments with named default values are not returned. 

        def test_long_form():
        """Test type hinting with long-form comments."""
        zzz ='dswsd'
        def func(arg1,
                 arg2,  # type: int
                 arg3 = zzz,  # type: str
                 arg4 = None  # type: str
                 ):
            # type: (...) -> bool
            pass
    
>       assert get_type_hints(func, globals(), locals()) == {
            'return': bool,
            'arg2': int,
            'arg3': str,
            'arg4': str
        }
E       AssertionError: assert {'arg2': <cla...class 'bool'>} == {'arg2': <clas...class 'bool'>}
E         Common items:
E         {'arg2': <class 'int'>, 'return': <class 'bool'>}
E         Right contains more items:
E         {'arg3': <class 'str'>, 'arg4': <class 'str'>}
E         Full diff:
E         - {'arg2': <class 'int'>, 'return': <class 'bool'>}
E         + {'arg2': <class 'int'>,
E         +  'arg3': <class 'str'>,
E         +  'arg4': <class 'str'>,
E         +  'return': <class 'bool'>}
    bug 
    opened by dangle 1
  • Add classes that enforce types of subclasses.

    Add classes that enforce types of subclasses.

    Create two classes that read annotated class attributes and generate properties for each attribute that will enforce the type of the values that can be set on the class.

    One class should strictly enforce the type with _is_instance checks and the other should attempt to coerce the value to the expected type.

    enhancement 
    opened by dangle 1
  • Class type hint comments.

    Class type hint comments.

    Currently, type hint comments are not supported for classes. The logic for following the MRO already exists in the base typing library, but must be adapted for comment support.

    enhancement 
    opened by dangle 0
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