CODEWITHSUNDEEP
pythonpython-typingpython-3.8function-parameter
GlebMorgan
GlebMorgan

Reputation: 39

Function __annotations__ dict has positional-only arguments go after positional-or-keyword ones

Arguments of a Python 3.8 function are defined in particular order: positional-only, mixed, keyword-only.

But __annotations__ define them in a different order: mixed, positional-only, keyword-only.

>>> def func(b: int, a: str, /, c: bool, *, e: float, d: tuple):
...     pass
... 
>>> func.__annotations__
{'c': 'bool', 'b': 'int', 'a': 'str', 'e': 'float', 'd': 'tuple'}

Is that behavour intentional? Or is it just implementation detail and no specific order is guaranteed at all?

I would expect native order of arguments that matches function definition. That would have made some things a lot easier IMO...

Upvotes: 1

Views: 108

Answers (0)

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