from numpy import *

# Aliasing (new array from existing array but we have only one array in memory because

# address is same)

'''arr1 = array([1,2,3,4,5,6])

arr2 = arr1

print("old array : ",arr1)

print("new array : ",arr2)

print("old id : ",id(arr1))

print("new id : ",id(arr2))'''

# shallow copy (changes will affect in both array)

'''arr1 = array([1,2,3,4,5,6])

arr2 = arr1.view()

arr1[1] = 20

print("old array : ",arr1)

print("new array : ",arr2)

print("old id : ",id(arr1))

print("new id : ",id(arr2))'''

# deep copy (changes will affect in only one array)

arr1 = array([1,2,3,4,5,6])

arr2 = arr1.copy()

arr1[1] = 20

print("old array : ",arr1)

print("new array : ",arr2)

print("old id : ",id(arr1))

print("new id : ",id(arr2))