No explicit way to create a `TypeAliasType` instance with a `__module__` of choice

[flying-sheep]

The __module__ attribute is readonly, and will always be derived using caller():

cpython/Objects/typevarobject.c

Lines 2199 to 2202 in 16185e9

	PyObject *module = caller();
	if (module == NULL) {
	return NULL;
	}

So the only ways to create a type alias with a __module__ of choice is by managing globals()["__name__"] using e.g. eval(..., globals=...), temporarily setting globals()["name"] = ..., or defining a custom module with that __name__.

It would make more sense to just make __module__ mutable.

[picnixz]

Isn't it a duplicate of an exisint issue already?

[picnixz]

It is a dup of #149171 was changed in 3.15+.

[flying-sheep]

Oops sorry!