Control Flow
Learn how to build control flow into your python code by including if, else, and elif statements as well as try and except statements. Expect to learn all you need to know about boolean variables and logical operators.
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Key Concepts
Review core concepts you need to learn to master this subject
elif Statement
Handling Exceptions in Python
or Operator
Equal Operator ==
Not Equals Operator !=
Comparison Operators
if Statement
else Statement
elif Statement
elif Statement
# elif Statement
pet_type = "fish"
if pet_type == "dog":
print("You have a dog.")
elif pet_type == "cat":
print("You have a cat.")
elif pet_type == "fish":
# this is performed
print("You have a fish")
else:
print("Not sure!")The Python elif statement allows for continued checks to be performed after an initial if statement. An elif statement differs from the else statement because another expression is provided to be checked, just as with the initial if statement.
If the expression is True, the indented code following the elif is executed. If the expression evaluates to False, the code can continue to an optional else statement. Multiple elif statements can be used following an initial if to perform a series of checks. Once an elif expression evaluates to True, no further elif statements are executed.
What you'll create
Portfolio projects that showcase your new skills
Magic 8-Ball
We’ve learned about and explored a powerful tool in Python — control flow! It’s so powerful, in fact, that it can be used to tell someone’s fortune.
Sal's Shipping
Use your knowledge of control flow to create a program that will help Sal's customers get the best deals on all their shipping needs.
How you'll master it
Stress-test your knowledge with quizzes that help commit syntax to memory
Control Flow
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