Python metaclass that logs calls to methods

MethodCallLoggingMetaclass.py

import logging
from types import FunctionType


class MethodCallLoggingMetaclass(type):
    def __new__(mcs, name, bases, attrs):
        for attr_name, attr_value in attrs.items():
            if isinstance(attr_value, FunctionType):
                attrs[attr_name] = mcs.log_wrapper(attr_value, name)
        return super().__new__(mcs, name, bases, attrs)

    @classmethod
    def log_wrapper(mcs, func, class_name):
        def wrapped(*args, **kwargs):
            logging.debug('%s.%s', class_name, func.__name__)
            return func(*args, **kwargs)

        return wrapped