Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

Python Python Basics (2015) Python Data Types Del

Alexander Huberfeld
Alexander Huberfeld
171 Points

Having trouble creating a variable that is the sum of two other variables.

They're asking me to do this and its giving me an error. "add a new variable named total. Then assign the sum of current_count and upcoming_releases to total. I'd like you to use the variables, but if you need to use the numbers, that's OK."

delete.py
current_count = 14
planned = 5
upcoming_releases = 2
del planned
total = "current_count" + "upcoming_releases"

2 Answers

Andrey Chernykh
PLUS
Andrey Chernykh
Courses Plus Student 2,552 Points

total = "current_count" + "upcoming_releases" - you trying to sum 2 text string not 2 variables, do it without "

Seth Kroger
Seth Kroger
56,413 Points

Using quotation marks like you have makes them text strings, not variable names. Adding two text strings will concatenate them (ie, splice them together end to end) resulting in the string "current_countupcoming_releases". Removing the quotation marks from that like will allow you to add two numeric variables together.