Autocompletion with class __call__() doesn't work

[4l1fe]

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Example Code

#!/usr/bin/python3
# -*- coding: utf-8 -*-
from typer import Typer, Argument


cli = Typer()


class TargetNamesEnum(str, Enum):
    ser = 'service'


class Autocompletion:
    ARG_TARGET = 'service'

    def __init__(self, argument):
        elif argument == self.ARG_TARGET:
            self.autocomplete_enum = TargetNamesEnum

    def __call__(self, incomplete: str, *args, **kwargs):
        completion = []

        for name in self.autocomplete_enum.__members__.values():
            if name.startswith(incomplete):
                completion.append(name)

        return completion


@cli.command()
def run(service: TargetNamesEnum = Argument(None, show_default=False, autocompletion=Autocompletion('service'))


if __name__ == '__main__':
    cli()

Description

If i try to get an argument completed in cli with Tab i see the error.

$ script.py <Tab>

...
TypeError: <__main__.Autocompletion object at 0x7fe61088ac80> is not a module, class, method, or function.

While in a repl i can call well Autocompletion manually

In [1]: import Autocompletion
In [2]: a = Autocompletion('service')
In [3]: a('')
Out[3]:
[<TargetNamesEnum.ser: 'service'>]

Operating System

Linux

Operating System Details

No response

Typer Version

0.7.0

Python Version

3.10.6

Additional Context

No response

[YuriiMotov]

Works if specify __call__ method explicitly:

def run(
    service: TargetNamesEnum = Argument(
        None,
        show_default=False,
        autocompletion=Autocompletion('service').__call__
    )
):
    pass