A Python Decorator for type-checking function args, similar in vein to PHP type-hinting

typecheck.py

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

	def __call__(self, F):
		# create a new function that checks
		# the function types first
		def typechecked_F(*args):
			for expected_type, arg in zip(self.types, args):
				if not isinstance(arg, expected_type):
					raise Exception('NOT CORRECT TYPE')
			return F(*args)
		return typechecked_F

@typecheck(int, int)
def add(X, Y):
	return X + Y

print( add(1,2) )