from types import *

class tc:
	def __init__(self, types=[]):
		self.types = types
		
	def _wrapper(self, func):
		def new_func(*args):
			if len(self.types)<>len(args):
				raise IndexError, 'Argument count mismatch'
			for i in range(len(args)):
				if type(args[i])<>self.types[i]:
					raise TypeError, 'Parameter type mismatch - paramater %s' % i
			return func(*args) 
		return new_func

def type_check(*types):
	checker = tc(types)
	return checker._wrapper

@type_check(int, int)
def test_int(a, b):
	print a + b
	
@type_check(float, int)
def test_float(a, b):
	print a + b

#works
test_int(1,2)

#raises exception
test(1.1, 2)

#works
test_float(1.1, 2)