Feature

https://github.com/RustPython/RustPython/blob/main/vm/src/stdlib/builtins.rs#L899-L919
We should compare between class (invoked by metaclass) and classcell's internal contents before exiting __build_class__
At now we manually set classcell's internal contents with class, but this should be done in type.__new__

Python Documentation

• Issue 23722: During metaclass.init, super() of the constructed class does not work - Python tracker
• https://github.com/python/cpython/blob/3.10/Objects/typeobject.c#L3030-L3056
• https://github.com/python/cpython/blob/3.10/Python/bltinmodule.c#L225-L242)

Related test cases

• test_super.py
  • test___classcell___overwrite
  • test___classcell___missing
  • test___classcell___wrong_cell
  • test___class___new
  • test___class___delayed