Python Tuples

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Python Tuples

Python Tuples are read-only lists. A tuple is an ordered sequence of items. A tuple can consist of several values separated by commas.

Lists and tuples are two types of data structures in Python. The primary difference between them is that tuples are immutable, meaning that once they are created, they cannot be modified. In contrast, lists are mutable and can be changed dynamically. Tuples are often used to write and protect data because their immutability ensures that the data cannot be accidentally modified. Additionally, tuples are usually faster than lists because of their fixed structure.

List vs. Tuple

Python List	Python Tuple
Lists are mutable. We can change the elements in the list.	Tuples are immutable. Tuples are read-only; we cannot change the elements in the tuple.
Lists are declared using [], and elements are separated with commas.	Tuples are declared using (), and elements are separated with commas.

Tuple declaration

Unlike lists, tuples are enclosed within parenthesis (). Tuples are declared as follows.

>>> tup = (2,4,6,8,10,12)
>>>
>>> type(tup)
<class ‘tuple’>
>>>
>>> print(tup)
(2, 4, 6, 8, 10, 12)
>>>

Python Tuples

Using the slicing operator with a Tuple

The slicing operator[] is used to extract items from the tuple. However, we cannot edit data into the tuple.

>>> # Python Slice operator on Tuple
>>> # Define a tuple
>>> t = (2,4,6,8,10,12,14,3.14)
>>>
>>> print(t) # print the tuple
(2, 4, 6, 8, 10, 12, 14, 3.14)
>>> print(t[1:5]) # Prints the 2nd to 5th value in the tuple
(4, 6, 8, 10)
>>>
>>> print(t[1:]) # Prints the 2nd to the last value
(4, 6, 8, 10, 12, 14, 3.14)
>>>

Python Tuple Slice Demo