What exactly does this program do?

Selection Statements in Python

• Selection statements allow us to control the flow of our program based on certain conditions.

• Python provides two types of selection statements: if and if-else.

• With if statements, we can execute a block of code only if a certain condition is true.

• If-else statements allow us to execute different blocks of code based on different conditions.

• Selection statements are essential for making decisions and creating dynamic programs.

if Statement in Python

Trivia: The if statement in Python is used to execute a block of code only if a certain condition is true. It is also used to handle multiple conditions using if, elif, and else. Additionally, it can be used to check for equality using == and inequality using !=. Conditions can also be combined using and and or.

• It is a fundamental control structure in Python programming.
• It allows for decision-making and branching in the code.
• It helps in making the code more flexible and adaptable.

Using the else Statement

• The else statement is used in conjunction with if statement to execute a block of code when the condition is False.
• It provides an alternative path of execution when the condition is not met.
• The else statement is optional and can be used only once in an if statement.

Comparison Operators in Python

• == - equal to
• != - not equal to
• < - less than
• > - greater than
• <= - less than or equal to
• >= - greater than or equal to

Indentation in Python

• Python requires indentation as part of the syntax

• Indentation signifies the start and end of a block of code

• Correct indentation is crucial, or the program may either not run, or give an incorrect result

• If gives you two options

• ELIF stands for Else, If and gives you more options

• You can use it as many times as you like

The ELIF statement

Write a simple program that might be used inside a police speed camera:

​The requirements are:

• It must accept the driver’s speed

• IF the speed is over 70mph, a message “Issue Fine” should appear on the speed gun

• Otherwise it should display
  “No Action”

Write a program

• Add an ELIF statement to the Speeding program

• Issue a warning between 70 and 75mph 

• Only issue a fine for 75mph and over

​

Using the ELIF statement