how to release the memory in python code example

Example: python memory usage

import sys
a, b, c,d = "abcde" ,"xy", 2, 15.06
print(sys.getsizeof(a))
print(sys.getsizeof(b))
print(sys.getsizeof(c))
print(sys.getsizeof(d))

#Running the above code gives us the following result
38
35
24
24