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 Introducing Lists Using Lists Iteration

miranda maposa
seal-mask
.a{fill-rule:evenodd;}techdegree
miranda maposa
Data Analysis Techdegree Student 1,074 Points
Posted by miranda maposa
.a{fill-rule:evenodd;}techdegree
miranda maposa
Data Analysis Techdegree Student 1,074 Points

Not sure why this will not loop

I'm following along with the video but my work will not print attendee in attendees. Not sure what I'm missing:

attendees = ["Ken", "Alena", "Treasure"]
attendees.append("Ashley")
attendees.extend(["James", "Gill"])
optional_invitees = ["Ben","Dave"]
potential_attendees = attendees + optional_invitees                        
print("There are", len(potential_attendees), "potential attendees currently")

treehouse:~/workspace$ python -i meeting.py                                                                    
There are 8 potential attendees currently                                                                      
>>> attendees                                                                                                  
['Ken', 'Alena', 'Treasure', 'Ashley', 'James', 'Gill']                                                        
>>> for attendee in attendees:                                                                                 
...     print(attendee)

2 Answers

Steven Parker
Steven Parker
231,236 Points
Steven Parker
Steven Parker
231,236 Points

It works for me, I get this:

>treehouse:~/workspace$ python -i meeting.py    
There are 8 potential attendees currently   
>>> attendees   
['Ken', 'Alena', 'Treasure', 'Ashley', 'James', 'Gill']   
>>> for attendee in attendees:   
...     print(attendee)    
...                 <-- NOTE: it takes an extra newline to let Python know you are done typing
Ken    
Alena   
Treasure     
Ashley    
James     
Gill      
>>>
Kenny Hardcastle
Kenny Hardcastle
621 Points
Kenny Hardcastle
Kenny Hardcastle
621 Points

I have been sitting here for 20 mins trying to figure out why my list wasn't printing out. Lo and behold, I was just a simple "enter" button away from getting it!