mutable immutable [Python] list int

# mutable immutable

def main():

# List is mutable

myList = [1, 2, 3]

print(hex(id(myList)), myList)

myList.append(4)

print(hex(id(myList)), myList)

# int is immutable

myInt = 3

print(hex(id(myInt)), myInt)

myInt += 1

print(hex(id(myInt)), myInt)

if __name__ == "__main__":

main()

[Output]

0x20fd3e84508 [1, 2, 3]

0x20fd3e84508 [1, 2, 3, 4]

0x55ce80b0 3

0x55ce80d0 4