[Learning Python] shallow vs. deep copy

import copy

l=[1,3.14,[2,4,6]]

l2=copy.copy(l)

print(l)

print(l2)

print(id(l))

print(id(l2))

print('------------------------')

for i in l:

    print(id(i))

print('------------------------')

for i in l2:

    print(id(i))

Although visible # l and l2 address is not the same, but in which the contents are the same

#copy i.e. corresponding to two different pointer addresses shallow copy, l and l2 is not the same

'''

Shallow copy features:

After two shallow copy memory address sequences are not identical

Two sequences, the same elements in the same memory address index

'''

print('------------------------')

print('------------------------')

print('------------------------')

l3=copy.deepcopy(l)

print('------------------------')

for i in l3:

    print(id(i))

# Visible after a deep copy significantly different address