Control Flow Fundamentals
Learn how to control program flow using conditional statements and operators in Python.
30 minutesBeginner
Learning Objectives
- •Write conditional statements to control program flow
- •Use comparison and logical operators effectively
- •Handle basic input/output operations
- •Create simple interactive programs
Control Flow in Python
Control flow is how we make our programs make decisions and repeat actions. Think of it as teaching your program to think and react!
Let's explore how Python helps us control program flow:
Key Points:
- Programs need to make decisions
- Control flow guides program execution
- Python provides clear syntax for control
Initializing Python environment...
5 > 10
false(Greater than)
5 < 10
true(Less than)
5 == 10
false(Equal to)
5 != 10
true(Not equal to)
5 >= 10
false(Greater than or equal to)
5 <= 10
true(Less than or equal to)
Conditions
Results
AND
is_sunny AND is_warmtrue
All conditions must be true
OR
is_sunny OR is_warmtrue
At least one condition must be true
NOT
NOT is_sunnyfalse
NOT is_warmfalse
Inverts the condition
Initializing Python environment...
Python Input/Output Simulator
Simulates Python's input() function behavior
>>> input("What's your name?")
Equivalent Python Code:
Initializing Python environment...
Check Your Understanding
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Summary
In this lesson, you've learned:
- How to use if, elif, and else statements
- Working with comparison operators
- Using logical operators
- Getting input from users
- Basic input validation
Key Points to Remember:
- Indentation is crucial in Python control flow
- Use == for comparison, = for assignment
- elif allows checking multiple conditions
- else provides a default case
- Always validate user input
Next Steps:
- Practice writing more complex conditions
- Combine multiple conditions
- Work on error handling
- Learn about loops and iteration
Key Points:
- Master control flow basics
- Practice with conditions
- Validate user input
- Prepare for loops
Key Takeaways
- •Understanding of conditional statements
- •Mastery of comparison operators
- •Knowledge of logical operators
- •Basic I/O handling skills