Signature has wrong class name when using metaclasses

[gpotter2]

When using metaclasses, the signature has the wrong class name. Here's a very easy example:

class Dummy_metaclass(type):
    def __new__(cls, name, bases, dct):
        dct["ID"] = 0 
        return type.__new__(cls, name, bases, dct)

class Test(metaclass=Dummy_metaclass):
    def __init__(self, a, b, c):
        pass

With "Show signature" enabled, this displays:

which is dumb. It should be Test(a, b, c). Typically this happens when one use cls.__class__.name instead of cls.__name__.

If I understand this issue correctly, this looks rather like a jedi bug where the wrong value is passed here:

ptpython/ptpython/signatures.py

Line 150 in 91d2c35

name=signature.name,

which is why I also opened an issue on davidhalter/jedi#1950

Infos: ptpython 3.0.23 on Debian 12