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Python Introducing Lists Build an Application Multidimensional Musical Groups

Gard Sveipe Bahmanyar
Gard Sveipe Bahmanyar
1,693 Points
Posted by Gard Sveipe Bahmanyar
Gard Sveipe Bahmanyar
1,693 Points

I dont get it. How do i do this

i tried eeryhting. but i cant undetrstand

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 i in range(len(musical_groups)):
    for j in range(len(musical_groups[i])):
        print(musical_groups[i][j] + ", ", end="")
    print()

1 Answer

Megan Amendola
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STAFF
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Megan Amendola
Treehouse Teacher
Megan Amendola
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Megan Amendola
Treehouse Teacher

Hi, Gard! When I run your code, there's an extra ',' at the end of each line. That might be what's causing the issue.

Looks like this:

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,

Also, take a look at the join function. It probably wants you to use that function here and it will get rid of the issue you're having above and it can shorten your code.