The doc https://docs.python.org/3/library/copy.html says:

"This module does not copy types like module, method, stack trace, stack frame, file, socket, window, array, or any similar types."

But it does copy arrays just fine:

import copy, array
a = array.array('i', [1, 2])
b = copy.copy(a)
a[0] = 3
print(a)
print(b)

Output:

array('i', [3, 2])
array('i', [1, 2])