Formation 90 min read Introduction to Python

📦 Control Structures (if, for, while)

Python & Data Science Chapter : Introduction to Python Sub-chapter : Control structures

Learning objectives

🎯 Objectives:\n
1Master if/elif/else\n2. Use for loops\n3. Use while loops\n4. Understand break and continue

Introduction

📖 This course covers conditional structures and loops.

Theoretical content

Conditionals:\n
PYTHON
\nif age < 18:\n    print("Minor")\nelse:\n    print("Adult")\n

Practical examples

💻 Example: Guessing game\n
PYTHON
\nsecret = 42\nwhile True:\n    guess = int(input("Guess: "))\n    if guess == secret:\n        print("You win!")\n        break\n

Best practices

1Avoid deeply nested conditions\n✅ 2. Prefer list comprehensions\n✅ 3. Always have exit for while

Common pitfalls

Infinite while loop\n
Explicit exit condition

Summary

if/elif/else: conditional execution\n✅ for: sequence iteration\n✅ while: conditional repetition\n✅ break: early exit\n✅ continue: skip iteration

Additional resources

📚 docs.python.org/3/tutorial/controlflow.html