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Python Introducing Lists Build an Application Multidimensional Musical Groups

Posted by Brendan Dzeguze
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Brendan Dzeguze
Front End Web Development Techdegree Graduate 14,567 Points

My code for "introducing lists" isn't running.

The output is "expected str instance list found". can someone help? thanks.

groups.py 
musical_groups = [
    ["Ad Rock", "MCA", "Mike D."],
    ["John Lennon", "Paul McCartney", "Ringo Starr", "George Harrison"],
    ["Salt", "Peppa", "Spinderella"],
    ["Rivers Cuomo", "Patrick Wilson", "Brian Bell", "Scott Shriner"],
    ["Chuck D.", "Flavor Flav", "Professor Griff", "Khari Winn", "DJ Lord"],
    ["Axl Rose", "Slash", "Duff McKagan", "Steven Adler"],
    ["Run", "DMC", "Jam Master Jay"],
]

# Your code here
for musical_group in musical_groups:
    toline = ", ".join(musical_groups);
    print(toline);

1 Answer

Chris Freeman
MOD
Chris Freeman
Treehouse Moderator 68,457 Points
Chris Freeman
Chris Freeman
Treehouse Moderator 68,457 Points

Hey Brendan Dzeguze, are SO close!

You need to join the loop variable musical_group and not the whole data group musical_groups

Also, Python does not use the semi-colons to end a line. In this case, they are harmless, but best to remove them.

Post back if you need more help. Good luck!!