Copy of Python list

1. Assign value directly by name:

my_habit = ['game', 'running']
friend_habit = my_habit
my_habit.append('swimming')
friend_habit.append('pingpang')
print(my_habit)
print(friend_habit)

The output is:

['game', 'running', 'swimming', 'pingpang']
['game', 'running', 'swimming', 'pingpang']

Here will be my_habitassigned friend_habitinstead to store a copy of my_habit friend_habit, this syntax is designed to let the new Python variables friend_habitassociated to be included in my_habitthe list, so these two variables are the same list.

2. Create a new list:

'''
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'''
my_habit = ['game', 'running']
friend_habit = my_habit[:]
my_habit.append('swimming')
friend_habit.append('pingpang')
print(my_habit)
print(friend_habit)

The output is:

['game', 'running', 'swimming']
['game', 'running', 'pingpang']