What if you have a ternary operator that’s very long?
var = 'I want to learn Python' if 42**2<166 else 'I want to learn Go programming' print(var) # I want to learn Go programming
Problem: How to write the ternary operator in multiple lines?
Short Recap: Ternary Operator
Ternary Operator: The most basic ternary operator
x if c else y consists of three operands
y. It is an expression with a return value. The ternary operator returns
x if the Boolean expression
c evaluates to
True. Otherwise, if the expression
c evaluates to
False, the ternary operator returns the alternative
Syntax: The three operands are written as
x if c else y which reads as “return
c else return
y“. Let’s write this more intuitively as:
<OnTrue> if <Condition> else <OnFalse>
|<OnTrue>||The return expression of the operator in case the condition evaluates to |
|<Condition>||The condition that determines whether to return the <On True> or the <On False> branch.|
|<OnFalse>||The return expression of the operator in case the condition evaluates to |
Related article: For a full tutorial on the ternary operator, check out our detailed blog article.
Method: Parenthesis to Extend Logical Line Over Multiple Physical Lines
Solution: You can extend any logical line in Python over multiple physical lines by using the parenthesis.
var = 'I want to learn Python' if 42**2<166 else 'I want to learn Go programming' print(var) var = ('I want to learn Python' if 42**2<166 else 'I want to learn Go programming') print(var) # I want to learn Go programming
This is the PEP8 standard way of breaking long lines—if you cannot do it in a more natural way (such as avoiding the ternary operator and using the if statement in this example).
Try it yourself:
Exercise: Write a nested ternary operator and break it into multiple lines!
Where to Go From Here?
Enough theory, let’s get some practice!
To become successful in coding, you need to get out there and solve real problems for real people. That’s how you can become a six-figure earner easily. And that’s how you polish the skills you really need in practice. After all, what’s the use of learning theory that nobody ever needs?
Practice projects is how you sharpen your saw in coding!
Do you want to become a code master by focusing on practical code projects that actually earn you money and solve problems for people?
Then become a Python freelance developer! It’s the best way of approaching the task of improving your Python skills—even if you are a complete beginner.
Join my free webinar “How to Build Your High-Income Skill Python” and watch how I grew my coding business online and how you can, too—from the comfort of your own home.