Python Fast Track Coding Classes for Surabaya Students

1. Introduction: What Are Conditional Statements?

Conditional statements allow a program to make decisions. Real-world logic branches based on conditions:

• If a condition is True, the program executes one set of instructions.
• If that condition is False, the program executes an alternative set instead.

Analogy: “Is it raining?” — If yes, take an umbrella; else, do not.

2. Syntax: if and else

temperature = 30

if temperature > 35:
    print("It is hot weather")
else:
    print("It is not hot weather")

Because 30 > 35 is False, Python runs the else block and prints “It is not hot weather”.

3. Python Indentation

Python uses indentation (typically 4 spaces) instead of curly braces to define code blocks under if and else.

4. Combining input() and Typecasting with if

input() always returns a string, so convert before numeric comparisons:

temp_input = input("Enter temperature: ")
temperature = int(temp_input)

if temperature > 35:
    print("It is hot weather")
else:
    print("It is not hot weather")