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Conditional Statements

Explore the fundamentals of conditional statements in Python to control program execution based on Boolean conditions. Understand how to use if, if-else, and if-elif-else structures, including proper syntax and indentation. This lesson prepares you to write logic-based decisions in Python effectively.

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Conditional statements in Python

A conditional statement controls the flow of execution in a program based on a Boolean expression. If the expression evaluates to True, then a different piece of code might execute, If it is False, then some other piece of code will execute. This is also explained in the following illustration.

These statements give the computer the ability to decide the flow of execution of the program based on the information it receives. There are three kinds of conditional statements:

  • if
  • if-else
  • if-elif-else

if statement

It is the simplest conditional statement. The structure of the statement is:

if (condition):
  code

If the condition provided is satisfied, then the code is executed, otherwise, it is skipped. The colon, :, after the condition is necessary as it ...