CBSE Class XI · Academic Session 2026–27

Introduction to Python

Python uses indentation for blocks. Input is text until converted. Lists are ordered and mutable; dictionaries map keys to values. NumPy arrays support numerical work. Example: marks=[72,81,67]; average=sum(marks)/len(marks) gives 73.33.

Syllabus notes

Python uses indentation for blocks. Input is text until converted. Lists are ordered and mutable; dictionaries map keys to values. NumPy arrays support numerical work. Example: marks=[72,81,67]; average=sum(marks)/len(marks) gives 73.33.

Practice

Official CBSE curriculum (2026–27)