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Conditional Statements in Python
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Conditional Statements in Python

Conditional Statements in Python

1. Mastering Python if Statements
Introduction to Python if StatementsPython if Statement SyntaxUsing Comparison Operators in PythonLogical Operators in PythonOperator Precedence in PythonChallenge: Simplifying Fitness Tracker Logic
2. Mastering Python if-else Statements
Python if-else Statement SyntaxChallenge: Tracking Step Goal Progress with if-else StatementsChallenge: Debugging and Improving a Hydration Reminder CodeUsing Conditional Expressions in PythonChallenge: Implementing a Password Checker with if-else Logic
3. Mastering Python if-elif-else Statements
Introduction to Python if-elif-else StatementsChallenge: Implementing a Workout Duration Tracker with if-elif-elseChallenge: Debugging and Improving Code LogicChallenge: Building a Progress Tracker Using if-elif-else Statements

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Introduction to Python if Statements

In this course, we'll focus on understanding the purpose of conditional statements, learn how they enable decision-making in programming, and explore an example to see them in action.

What Are Conditional Statements?

A conditional statement allows your program to make decisions by executing different blocks of code based on whether a specific condition is True or False. Think of it as answering a "yes or no" question in your code: "If this condition is true, do this."

For example, imagine building a Fitness Tracker. If a user's step count reaches their daily goal, you might display a congratulatory message. Otherwise, you might encourage them to take more steps.

Syntax of a Conditional Statement

Here's the basic syntax of an if statement:

python

Explanation of the Syntax:

  1. if: this keyword begins the conditional statement;
  2. condition: this is a logical expression that evaluates to True or False;
  3. Code Block: the indented code below the if statement runs only when the condition is True.

Example: Checking Step Count in a Fitness Tracker

Let's write a simple example using a Fitness Tracker. We'll check if the user has achieved their step goal for the day.


              
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steps_taken = 12000
step_goal = 10000

if steps_taken >= step_goal:
    print("Congratulations! You've reached your daily step goal.")
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Explanation

  1. Condition: the if statement checks if the number of steps taken (steps_taken) is greater than or equal to the step goal (step_goal);
  2. Result: if the condition is True (e.g., 12000 >= 10000), the message "Congratulations! You've reached your daily step goal." is printed. But if the condition is False (e.g., 7500 >= 10000), nothing happens, and the program moves on.

1. What is the purpose of a conditional statement?

2. What does this code do if steps_taken = 7500 and step_goal = 10000?

question mark

What is the purpose of a conditional statement?

Select the correct answer

question mark

What does this code do if steps_taken = 7500 and step_goal = 10000?

Select the correct answer

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Section 1. Chapter 1
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