List: • A list is an object that has sequence of elements. • The contents of the list can be changed at any point of time, so lists in Python are mutable. • Lists support various additional operations like “append()”, “insert()”, “remove()”, “del()”, etc. • Lists have a dynamic size. • Lists store elements of same type, i.e. lists are homogenous. • List elements are enclosed by square brackets. Syntax: The syntax to create a list is as follows: List_name = [element1, element2,…, elementn] Explanation: Here, • “List_name” specifies the list name. • “element1, element2, and elementn” indicate the list elements. Example program : Consider the below example that creates a list and prints the list. #Declare a list with numbers list_ex = [1, 2, 3, 4] #Print the list print(list_ex) Sample Output: [1, 2, 3, 4] Program explanation: In the above code, • “list_ex” represents a list having integers as its elements. • Then, the list “list_ex” is printed using “print()” function. Tuple: • Tuple is an object that has immutable sequence of elements. • The contents of the tuple cannot be altered once it is created. Therefore, tuples in Python are immutable. • Tuples have a static size. • The elements of tuples can be of various types, i.e. tuples are heterogeneous. • Elements in the tuple are enclosed by parenthesis. Syntax: In python, a tuple is created using the below format. #Create a tuple Tuple_name = (element1, element2, …, elementn) Explanation: • “Tuple_name” specifies the tuple name. • “element1, element2, and elementn” indicate the tuple elements. Example program: Consider the below example that creates a tuple and prints the tuple. #Declare a tuple with numbers, strings tuple_ex = [1, 'Joe', 'Tom', 4] #Print the tuple print(tuple_ex) Sample Output: [1, 'Joe', 'Tom', 4] Program explanation: In the above code, • “tuple_ex” represents a tuple having integers and strings as its elements. • Then, the tuple “tuple_ex” is printed using “print()” function.

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Chapter 7.9, Problem 25CP

Program Plan Intro

List:

• A list is an object that has sequence of elements.

• The contents of the list can be changed at any point of time, so lists in Python are mutable.

• Lists support various additional operations like “append()”, “insert()”, “remove()”, “del()”, etc.

• Lists have a dynamic size.

• Lists store elements of same type, i.e. lists are homogenous.

• List elements are enclosed by square brackets.

Syntax:

The syntax to create a list is as follows:

List_name = [element1, element2,…, elementn]

Explanation:

Here,

• “List_name” specifies the list name.

• “element1, element2, and elementn” indicate the list elements.

Example program:

Consider the below example that creates a list and prints the list.

#Declare a list with numbers

list_ex = [1, 2, 3, 4]

#Print the list

print(list_ex)

Sample Output:

[1, 2, 3, 4]

Program explanation:

In the above code,

• “list_ex” represents a list having integers as its elements.

• Then, the list “list_ex” is printed using “print()” function.

Tuple:

• Tuple is an object that has immutable sequence of elements.

• The contents of the tuple cannot be altered once it is created. Therefore, tuples in Python are immutable.

• Tuples have a static size.

• The elements of tuples can be of various types, i.e. tuples are heterogeneous.

• Elements in the tuple are enclosed by parenthesis.

Syntax:

In python, a tuple is created using the below format.

#Create a tuple

Tuple_name = (element1, element2, …, elementn)

Explanation:

• “Tuple_name” specifies the tuple name.

• “element1, element2, and elementn” indicate the tuple elements.

Example program:

Consider the below example that creates a tuple and prints the tuple.

#Declare a tuple with numbers, strings

tuple_ex = [1, 'Joe', 'Tom', 4]

#Print the tuple

print(tuple_ex)

Sample Output:

[1, 'Joe', 'Tom', 4]

Program explanation:

In the above code,

• “tuple_ex” represents a tuple having integers and strings as its elements.

• Then, the tuple “tuple_ex” is printed using “print()” function.

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