A Crash Course for Beginners with Python

Learn Python in 10 Lessons: A Crash Course for Beginners

Learn Python in 10 Lessons: A Crash Course for Beginners

Welcome to DarchumsTech's crash course on Python! Whether you’re looking to break into programming or just curious about Python, this tutorial is your perfect starting point. In just 10 lessons, you'll go from zero to writing functional Python scripts.

Why Python? Python is one of the most popular and beginner-friendly programming languages, used in web development, data science, AI, and automation.


Lesson 1: Hello, World!

Let’s begin by printing your first message.

print("Hello, world!")

Lesson 2: Variables and Data Types

Variables store data. Python has several data types like int, float, str, and bool.

name = "Alice"
age = 25
height = 5.7
is_student = True

Lesson 3: Basic Input and Output

You can get user input with the input() function.

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

Lesson 4: Conditional Statements

Use if, elif, and else to control flow.

age = int(input("Enter your age: "))
if age >= 18:
    print("You are an adult.")
else:
    print("You are a minor.")

Lesson 5: Loops in Python

Loops help repeat actions. Here’s a for loop and a while loop:

for i in range(5):
    print(i)

x = 0
while x < 5:
    print(x)
    x += 1

Lesson 6: Functions

Functions help you reuse code.

def greet(name):
    return "Hello, " + name

print(greet("Alice"))

Lesson 7: Lists and Dictionaries

Lists store items in order. Dictionaries store key-value pairs.

fruits = ["apple", "banana", "cherry"]
print(fruits[1])  # banana

person = {"name": "Alice", "age": 25}
print(person["name"])

Lesson 8: Error Handling

Use try and except to handle errors.

try:
    x = int(input("Enter a number: "))
    print(10 / x)
except ZeroDivisionError:
    print("Cannot divide by zero!")
except ValueError:
    print("Please enter a valid number.")

Lesson 9: File Handling

Read from and write to files easily.

# Write
with open("hello.txt", "w") as file:
    file.write("Hello, file!")

# Read
with open("hello.txt", "r") as file:
    print(file.read())

Lesson 10: Modules and Your First Project

Python has built-in and external modules. Try creating a mini calculator project:

import math

def calc():
    print("Square root calculator")
    num = float(input("Enter a number: "))
    print("Square root is:", math.sqrt(num))

calc()

Final Thoughts

Congrats! You’ve completed your Python crash course. But this is only the beginning.

  • Keep practicing by building small projects.
  • Try solving coding problems on platforms like HackerRank, LeetCode, or Replit.
  • Stay tuned on DarchumsTech for more tutorials!

Next Up: Learn to build a command-line tool in Python – coming soon!

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