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The output of the preceding code would be as follows:

Output
List of Exam Subjects: ['Math', 'Science', 'English', 'History', 'Computer']
Using Positive Indexing:
The first exam subject is: Math
The third exam subject is: English
Using Negative Indexing:
The last exam subject is: Computer
The second last exam subject is: History

MODIFYING THE LIST ELEMENT
Lists are mutable, which means you can change the elements after the list is created without
creating a new space for storage of the changed list. You can do this by using an assignment
operator (=).

Program 17 A program to change the elements of a list.

Program17.py
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exam_subjects = ["Math", "Science", "English", "History", "Computer"]
print("List of Exam Subjects:", exam_subjects)
exam_subjects[1]="French"
exam_subjects[3]="Social Studies"
print("List of Modified Exam Subjects:",exam_subjects[:])

The output of the preceding code would be as follows:

Output
List of Exam Subjects: ['Math', 'Science', 'English', 'History', 'Computer']
List of Modified Exam Subjects: ['Math', 'French', 'English', 'Social
Studies', 'Computer']

SLICING THE LIST
List slicing refers to a part of a list. In Python, list slicing is done by using the Slicing operator(:). The
syntax of slicing the list is as follows:

name of the list[ start : stop : step ]
start is the start position of the list.
stop is the end position of the list.
step is the increment of the list (the step parameter is optional and by default is 1).

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Step Ahead with Python