Match Statements

The match statement in Python allows you to compare a value against a series of patterns and execute code based on which pattern matches.

Here’s a simple example of how to use match and case statements:

Let’s say we want to print a message based on the day of the week:

day = "Monday"
 
match day:
    case "Monday":
        print("Start of the work week!")
    case "Wednesday":
        print("We're halfway through the week!")
    case "Friday":
        print("It's almost the weekend!")
    case _:
        print("Just another day.")

In this example, the match statement checks the value of the day variable against each case.

• If day is "Monday", it prints “Start of the work week!”
• If day is "Wednesday", it prints “We’re halfway through the week!”
• If day is "Friday", it prints “It’s almost the weekend!”
• The _ case is a “wildcard” that matches anything not covered by the previous cases, so it prints “Just another day.” for any other value of day.

You can see in the above explanation that the match statement is similar to having multiple if, elif, and else statements, but it is much more readable and clean.

As you code, you’ll recognize situations where using match and case can make your code clearer than using multiple conditional statements, but generally speaking, match is particularly useful when you have a variable that can take on many different values and you want to handle each value differently.