Conditions and Loops in Python: How to Control Program Flow

Conditional constructions allow a program to make decisions. The main construction is if. It checks a certain condition and executes code if the condition is true.

For example:

age = 18
if age >= 18:
    print("You are an adult")
else:
    print("You are still a minor")

You can also use elif to check several conditions in sequence.

Loops allow you to repeat the same code multiple times. Python has two main types of loops: for and while.

The for loop is convenient when you need to iterate over a list or a range of numbers. The while loop runs as long as a certain condition remains true.

Loops and conditions are often used together. For example, you can check each number in a list and perform certain actions only for those that meet the condition.

It is important to end loops correctly so that the program does not get stuck in an infinite loop. For this, the break and continue operators are used.

Practicing conditions and loops is the foundation for writing real programs. Try writing a simple program that prints all even numbers from 1 to 50, or a program that checks a password.