Python Tuples
A tuple in Python is an immutable, ordered sequence of elements. Once created, the elements within a tuple cannot be changed. Tuples are commonly used when a collection of data needs to be stored, but you don’t want it to be modified. Tuples are determined by circular brackets ( )
Example:
# Examples of tuple in Python
tuple1 = () # An empty tuple
tuple2 = (4, 5, 1, 7, 3) # A tuple with 5 integers
tuple3 = (True, False, True, False, True) # A tuple with 5 boolean values
tuple4 = (1, ‘XYZ’, True) # In Python, different types of values can be stored in a tuple
Explanation:
● tuple1 = ( ): This is an empty tuple that doesn’t contain any elements.
● tuple2 = (4, 5, 1, 7, 3): This tuple contains 5 integer values: 4, 5, 1, 7, and 3.
● tuple3 = (True, False, True, False, True): This tuple contains 5 boolean values: True, False, True, False, and True.
● tuple4 = (1, ‘XYZ, ‘True’): This tuple contains 3 values of distinct data types. In python it is possible to store different types of values.
Creating and Accessing a Python tuple:
Scenario: Let’s create a tuple with the values {2, 4, 10, 5, 15, 3} and access the 3rd element using the tuple index.
# Create a tuple and access the 3rd element
numbers = (2, 4, 10, 5, 15, 3)
print(f”The third element: {numbers[2]}”)
Explanation:
● numbers = (2, 4, 10, 5, 15, 3): This initializes a tuple with 6 integer values: 2, 4, 10, 5, 15, and 3.
● print(f”The third element: {numbers[2]}”): This prints the 3rd element of the tuple. In Python, tuples are zero-indexed, meaning the index starts from 0. Therefore, numbers[2] refers to the 3rd element, which is 10.
Task:
1. Integer tuple:
Create a tuple of integers with values from 1 to 5.
Print all elements of the tuple.
2. String tuple:
Create a tuple of strings with the names of three fruits.
Print all elements of the tuple.
3. Double tuple:
Create a tuple of doubles with any 4 double values.
Print the sum of all elements in the tuple.
4. Boolean tuple:
Create a tuple of booleans with alternating true and false values.
Print all elements of the tuple.
