How are booleans used in Python?

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Booleans in Python are used to represent truth values and are essential for control flow and logical operations. Here are some common uses:

  1. Conditional Statements: Booleans are often used in if, elif, and else statements to control the flow of the program.

    is_student = True
    if is_student:
        print("You are a student.")
    else:
        print("You are not a student.")
    
  2. Logical Operations: Booleans can be combined using logical operators:

    • AND (and): True if both operands are true.
    • OR (or): True if at least one operand is true.
    • NOT (not): Inverts the truth value.
    is_student = True
    is_employed = False
    if is_student and not is_employed:
        print("You are a student and not employed.")
    
  3. Comparisons: Booleans result from comparison operations (e.g., ==, !=, <, >, <=, >=).

    age = 20
    is_adult = age >= 18  # True if age is 18 or older
    
  4. While Loops: Booleans can control the execution of loops.

    running = True
    while running:
        # Perform some actions
        running = False  # Change condition to exit loop
    

Booleans are fundamental for decision-making in programming. If you want to practice using booleans, consider exploring related labs on LabEx!

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