Calling enums Name or Value breaks MyPy typecheck

[arthur-proglove]

What version of protobuf and what language are you using? Version: 4.21.2 Language: Python

What operating system (Linux, Windows, ...) and version? ArchLinux

What runtime / compiler are you using (e.g., python version or gcc version) Python 3.7

What did you do?

• Create a simple Protobuf enum

enum Foo {
  FOO_ZERO = 0;
  FOO_ONE = 1;
  FOO_TWO = 2;
}

• Generate the the Python code

protoc --python_out=. --pyi_out=. foo.proto

• Use the generated code

from foo_pb2 import Foo

print(Foo.Name(0))

• Verify the code with MyPy

What did you expect to see

MyPy should pass without errors

What did you see instead?

MyPy complains that the type does not have the Name attribute

 error: "Type[Foo]" has no attribute "Name"

Anything else we should know about your project / environment

[ajasmin]

mypy is reporting errors on the generated stubs. Those may have to be addressed first.

The stubs generated for enums use a metaclass not deriving from type, which causes an error.

class MyEnum(int, metaclass=_enum_type_wrapper.EnumTypeWrapper):

enum_pb2.pyi:154: error: Metaclasses not inheriting from "type" are not supported

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