How do I extend a list in Python?

How do I extend a list in Python?

You can extend a list in Python using the extend() method, which adds elements from an iterable to the end of the list.

Can you show me an example of using extend()?

Sure! Here's an example:

my_list = [1, 2, 3]
my_list.extend([4, 5])
print(my_list)  # Output: [1, 2, 3, 4, 5]

What happens if I use append() instead?

Using append() adds the entire iterable as a single element. For example:

my_list = [1, 2, 3]
my_list.append([4, 5])
print(my_list)  # Output: [1, 2, 3, [4, 5]]

Are there any other ways to extend a list?

Yes! You can also use the += operator to extend a list. For example:

my_list = [1, 2, 3]
my_list += [4, 5]
print(my_list)  # Output: [1, 2, 3, 4, 5]