Python Week 1: Python Basics – Variables and Data Types

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Welcome to your Python journey! This week, we’ll learn the foundation of Python programming. By the end of this week, you’ll write your first Python programs!

Day 1: What is Python & Your First Program

What is Python?

Python is a programming language created by Guido van Rossum in 1991. It’s named after “Monty Python,” a British comedy group!

Why learn Python?

  • ✅ Easy to read and write (looks almost like English!)
  • ✅ Used by Google, Netflix, NASA, and many others
  • ✅ Great for beginners
  • ✅ Powerful enough for professionals
  • ✅ Used for websites, games, AI, data science, and more!

Your First Program: Hello, World!

print("Hello, World!")
Code language: Python (python)

What does this do?

  • print() is a function that displays text on screen
  • The text inside quotes is called a string
  • Parentheses () are where you put the information

Try these:

print("My name is [Your Name]")
print("I am learning Python!")
print("This is awesome!")
Code language: Python (python)

Day 2: Variables – Storing Information

What are Variables?

Variables are like labeled boxes that store information. You can put data in them and use them later!

# Creating variables
name = "Jibran"
age = 14
height = 5.4
is_student = True
Code language: Python (python)

Variable naming rules:

  • ✅ Can contain letters, numbers, and underscores
  • ✅ Must start with a letter or underscore
  • ✅ Cannot use special characters (@, #, $, etc.)
  • ✅ Case-sensitive (age and Age are different!)

Day 3: Numbers and Math Operations

# Addition
total = 10 + 5        # Result: 15

# Subtraction
difference = 20 - 8   # Result: 12

# Multiplication
product = 6 * 7       # Result: 42

# Division
quotient = 20 / 4     # Result: 5.0

# Exponents
squared = 5 ** 2      # Result: 25Code language: Python (python)

Day 4: Strings and User Input

# Getting user input
name = input("What is your name? ")
print("Hello, " + name + "!")

# String operations
message = "Python is fun!"
print(message.upper())  # PYTHON IS FUN!
print(len(message))     # 14Code language: Python (python)

Day 5: Lists

# Creating a list
colors = ["red", "blue", "green"]

# Accessing items
print(colors[0])  # red

# Adding items
colors.append("yellow")

# List operations
numbers = [5, 2, 8, 1, 9]
numbers.sort()
print(numbers)  # [1, 2, 5, 8, 9]
Code language: Python (python)

Week 1 Quiz

Week 1 Challenge Project

Create a Personal Profile Generator that collects user information and displays a formatted profile card!

print("=== PERSONAL PROFILE GENERATOR ===")
name = input("What is your name? ")
age = int(input("How old are you? "))
city = input("What city do you live in? ")
fav_color = input("Favorite color: ")

print("\n" + "=" * 40)
print("PROFILE CARD")
print("=" * 40)
print("Name: " + name)
print("Age: " + str(age))
print("Location: " + city)
print("Favorite Color: " + fav_color)
print("=" * 40)
Code language: Python (python)

Next Week Preview

We’ll learn about conditionals (if/else statements) – how to make your programs make decisions!

Practice Resources:

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