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Python Python Basics (2015) Python Data Types String concatenation

Moe Myint Kyal Sin
Moe Myint Kyal Sin
Courses Plus Student 553 Points

I don't really understand of using "format" and this question.

This is the question : OK! Make a new variable named subject that concatenates (uses the + sign) the string "Treehouse loves" and your name variable. You've probably received an email or two with this subject already! this is my answer : https://teamtreehouse.com/library/python-basics/python-data-types/string-concatenation Please help me figure this out. Thank you.

name = "moe myint"
subject += "Treehouse loves {}" .format(name)

2 Answers

Ari Misha
Ari Misha
19,323 Points

Hiya Moe! Your way is the most used way and a correct way to format strings as well. But the challenge askin' ya to concat the string using good ol' "+" operator. So yeah you dont have to use "format()" method in this challenge, coz challenge explicitly asked you to add strings using "+" operator. So yeah this is how your code should look like:

name = "Moe Myint"
subject = "Treehouse loves" + " " + name

Hey Moe!

There are a few issues here. Let's understand what's going on in the second line of your code. First, when you use the += operand, you are basically saying:

subject = subject + "Treehouse loves ".format(name)

This returns an error because you haven't defined subject yet. To use the += operand, you have to define the variable first. So, yes, this code below output is correct

subject = "Treehouse loves "
subject += name

But the problem here in this question is that the task is explicitly asking you to use the + to concatenate the variable and the string. So you'll have to do something like this:

name = "moe myint"
subject = "Treehouse loves " + name