work of tuples in python code example

Example 1: what are tuples used for

Tuples in Python

An immutable data value that contains related elements.
Tuples are used to group together related data,
such as a person’s name, their age, and their gender.

A tuple is the same as a list except uses parenthisies instead of square brackets.
A tuple is also immutable (cant be changed) unlike a list.

Example:
tup1 = ('physics', 'chemistry', 1997, 2000);

Example 2: tuples in python

t = 12345, 54321, 'hello!'
print(t[0])
# output 12345
print(t)
# output (12345, 54321, 'hello!')
# Tuples may be nested:
u = t, (1, 2, 3, 4, 5)
print(u)
# output ((12345, 54321, 'hello!'), (1, 2, 3, 4, 5))
# Tuples are immutable:
# assigning value of 12345 to 88888
t[0] = 88888
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: 'tuple' object does not support item assignment
# but they can contain mutable objects:
v = ([1, 2, 3], [3, 2, 1])
print(v)
# output ([1, 2, 3], [3, 2, 1])