How characters and integers are stored in Python

I am aware that in C, characters are 1 byte, and ints are 4 bytes. When I run this code in Python to determine the storage of characters and integers, I get unexpected values. Could anyone explain this discrepancy?

>>> sys.getsizeof(1)24>>> sys.getsizeof(10)24>>> sys.getsizeof(100)24>>> sys.getsizeof("a")38>>> sys.getsizeof("b")38>>> dump = cPickle.dumps(1)>>> sys.getsizeof(dump)41>>> >>> sys.getsizeof(chr(65))38