Class 11 Computer Science — Chapter 3: BRIEF OVERVIEW OF PYTHON 3

What you'll learn

• ▸Python Execution Modes (Interactive vs. Script)
• ▸Python Keywords
• ▸Identifiers and Naming Rules
• ▸Variables and Assignment
• ▸Basic Data Types
• ▸Basic Output with print()
• ▸Comments in Python

Chapter Summary

--- PAGE 1 --- 11149CH03 BRIEF OVERVIEW CHAPTER OF PYTHON 3 "Don't you hate code that's not properly indented? Making it [indenting] part of the syntax guarantees that all code is properly indented." — G. van Rossum In this chapter » Introduction to Python » Python Keywords » Identifiers » Variables » Data Types » Operators » Expressions » Input and Output » Debugging » Functions » if..else Statements » for Loop » Nested Loops 3.1 INTRODUCTION TO PYTHON An ordered set of instructions or commands to be executed by a computer is called a program. The language used to specify those set of instructions to the computer is called a programming language for example Python, C, C++, Java, etc. This chapter gives a brief overview of Python programming language. Python is a very popular and easy to learn programming language, created by Guido van Rossum in 1991. It is used in a variety of fields, including software development, web development, scientific computing, big data Reprint 2025-26…

Practice Questions from this Chapter

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1. Explain Python's interactive mode simply. Get Solution →
2. Compare Python and other languages. Get Solution →
3. Show a simple program using variables. Get Solution →
4. Who created the Python programming language? Get Solution →
5. What is the file extension for Python program files, also known as scripts? Get Solution →
6. What symbol is used for the Python prompt in the interpreter shell, indicating it's ready for instructions? Get Solution →
7. What are the reserved words in Python that have a specific meaning to the interpreter called? Get Solution →
8. In Python, what character is used to start a single-line comment? Get Solution →

Did you know?

• 💡 Python programming language is named after the comedy group Monty Python.
• 💡 The very first computer programmer was Ada Lovelace in the 1800s.
• 💡 Computer "bugs" were named after a real moth found in a machine in 1947.
• 💡 All computer information is stored using only two numbers: zero and one.
• 💡 Programmers celebrate their official day on the 256th day of every year.

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