carsonRadtke

class TC:
    def __init__(self, *types):
        self.types = types

    def __call__(self, func):
        def f(*args):
            match [*args]:
                case self.types: return func(*args)
                case _: raise TypeError("type mismatch")
        return f

carsonRadtke

"""
$ python3 fxn_logger.py 
foo(4)...16
foo(3, blah=None)...foo() got an unexpected keyword argument 'blah'
foo()...foo() missing 1 required positional argument: 'x'
Traceback (most recent call last):
  File "fxn_logger.py", line 33, in <module>
    foo()
  File "fxn_logger.py", line 19, in __call__
    raise e

carsonRadtke

#!/usr/bin/env python3

from random import random, randint
import operator


class Expr:
    __slots__ = ["op", "x1", "x2"]

    def __init__(self, x1, op=None, x2=None):