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![](https://ecs-static.teamtreehouse.com/assets/views/marketing/shared/community-banner-white-47072046c51352fe6a69f5e691ff5700b28bb11d45197d7bdf066d9ea3f72d0c.webp)
![Tim McMacken](https://uploads.teamtreehouse.com/production/profile-photos/2870622/micro_Me_and_Snoodle_Avatar.jpg)
Tim McMacken
11,910 PointsCan not multiply sequence by non-int of type 'str'
Traceback (most recent call last):
File "notifications.py", line 4, in <module>
result = praise * "!" * number_of_characters
TypeError: can't multiply sequence by non-int of type 'str'
1 Answer
![Chris Freeman](https://uploads.teamtreehouse.com/production/profile-photos/1153532/micro_image.jpg)
Chris Freeman
Treehouse Moderator 68,425 PointsThe error is due to the first *. It should be a + so that the praise
is concatenated to the multiple exclamation points.
result = praise + "!" * number_of_characters