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Python Introducing Lists Build an Application Multidimensional Musical Groups

Simon Au
Simon Au
5,508 Points
Posted by Simon Au
Simon Au
5,508 Points

How to join a separator in a multidimensional list?

I ran into error on line 13. It said musical_groups is undefined.

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


to_line = ", ".join(muscial_groups) 
group_number = 1
for group in musical_groups:
    print( "* group #{}: {}".format(group_number, to_line))
    group_number += 1

1 Answer

Alexander Besse
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.a{fill-rule:evenodd;}techdegree seal-36
Alexander Besse
Full Stack JavaScript Techdegree Graduate 35,115 Points
Alexander Besse
.a{fill-rule:evenodd;}techdegree seal-36
Alexander Besse
Full Stack JavaScript Techdegree Graduate 35,115 Points

Hi Simon!

I took a run through your code and here is the conclusion I found. Take a look at my code, make sure you understand it and compare the differences between itself and your code.

for group in musical_groups:
    members = []
    for member in group:
        members.append(member)
    print(", ".join(members))

Hope this helps, let my know if you have questions!

Simon Au
Simon Au
5,508 Points
Simon Au
Simon Au
5,508 Points

Thank you Alex! This answered my question.