Python Tutorial for Beginners

Python Tutorial for Beginners

This tutorial will guide you through the basics of Python, focusing on functions, variables, and for loops.

Variables

Variables are used to store information that can be referenced and manipulated in a program.

# Creating a variable
greeting = 'Hello, world!'
print(greeting)
            

Functions

Functions are reusable pieces of code that perform a specific task.

# Defining a function
def greet(name):
    print(f'Hello, {name}!')

greet('Alice')
            

For Loops

For loops are used for iterating over a sequence (such as a list, tuple, dictionary, or string).

# Using a for loop
colors = ['red', 'green', 'blue']
for color in colors:
    print(color)
            

Fully Working Example

Now, let's combine what we've learned into a fully working example.

# A simple program that greets each person in a list by their favorite color
def greet_by_favorite_color(name, color):
    print(f'Hello, {name}! Your favorite color is {color}.')

names_and_colors = [('Alice', 'blue'), ('Bob', 'green'), ('Charlie', 'red')]
for name, color in names_and_colors:
    greet_by_favorite_color(name, color)