KODO — Python Mastery

Module 1 of 30

Python Basics & Data Types

The foundation of every Python program — variables, data types, and output.

What is Python?

Python is a high-level, interpreted programming language created by Guido van Rossum in 1991. It emphasizes code readability with its use of indentation. Python is used in web development, data science, artificial intelligence, automation, and more.

Your First Python Program

Every programmer starts here. The print() function displays output to the console.

PYTHON

print("Hello, World!")
print("Welcome to KODO")
print(2026)

Output

Hello, World!
Welcome to KODO
2026

Python Data Types

Every value in Python has a type. Here are the 4 fundamental types:

Type	Example	Description
`int`	`42, -7, 0`	Whole numbers
`float`	`3.14, -0.5`	Decimal numbers
`str`	`"Hello"`	Text (in quotes)
`bool`	`True, False`	Boolean logic

PYTHON

# Check types with type()
print(type(42))       # <class 'int'>
print(type(3.14))     # <class 'float'>
print(type("Hi"))     # <class 'str'>
print(type(True))    # <class 'bool'>

Output

Knowledge Check — Module 1 (Q1)

Q1: What does print(type(42)) output?

Knowledge Check — Module 1 (Q2)

Q2: Which is a valid Python variable name?

Module 2 of 30

Arithmetic Operators

Python can be your calculator. Master the 7 arithmetic operators.

PYTHON

a, b = 17, 5
print(a + b)   # 22
print(a / b)   # 3.4
print(a // b)  # 3
print(a % b)   # 2
print(a ** b)  # 1419857

Module 3 of 30

Comparison & Logical Operators

Make decisions by comparing values.

PYTHON

x = 10
print(x > 5 and x < 20)  # True
print(not x == 10)      # False

Module 4 of 30

Assignment Operators

Shorthand to modify variables.

PYTHON

x = 10
x += 5   # x = 15
x *= 2   # x = 30
print(x)  # 30

Module 5 of 30

String Indexing & Slicing

Access characters and substrings.

PYTHON

text = "Python"
print(text[0])     # P
print(text[-1])    # n
print(text[0:3])   # Pyt
print(text[::-1])  # nohtyP

Module 6 of 30

If/Elif/Else Statements

Control program flow with conditions.

PYTHON

score = 85
if score >= 90: print("A")
elif score >= 80: print("B")
else: print("F")

Output

B

Module 7 of 30

Loops (For & While)

Automate repetition.

PYTHON

for i in range(5): print(i)
count = 0
while count < 3: print(count); count += 1

Module 8 of 30

Lists & Dictionaries

Store collections of data.

PYTHON

fruits = ["apple", "banana"]
student = {"name": "Alice", "age": 21}
print(fruits[0], student["name"])

Module 9 of 30

Functions

Reusable blocks of code.

PYTHON

def add(a, b): return a + b
print(add(5, 3))  # 8

Module 10 of 30

Practice Exercises

Apply everything from Modules 1-9.

10 Practice Problems

Write functions to: calculate factorial, count vowels, build a calculator, find max in a list, check palindrome, merge dictionaries, guessing game, Fibonacci sequence, remove duplicates, and build a to-do list.

Continue to Part 2 →