early binding in Python

early.py

from types import FunctionType, CellType
from typing import Any, Callable, TypeVar, Union


F = TypeVar("F", bound=Union[FunctionType, Callable[..., Any]])


def bind(wrapped: F) -> F:
    new_globals = wrapped.__globals__.copy()

    new_closure = [CellType(cell.cell_contents) for cell in wrapped.__closure__ or []]

    return FunctionType(
        wrapped.__code__,
        new_globals,
        wrapped.__name__,
        wrapped.__defaults__,
        tuple(new_closure),
    )