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Python Introducing Lists Build an Application Multidimensional Musical Groups

Vladimir Lapcevic
Vladimir Lapcevic
6,363 Points
Posted by Vladimir Lapcevic
Vladimir Lapcevic
6,363 Points

Why my second task is not correct? Please help.

I do not understand why my second task is not correct. Thanks. Please review my code and correct it as it should be.

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 group in musical_groups:
    print(", ".join(group))

for group in musical_groups:
    if len(group) == 3:
        print(group)

1 Answer

Unsubscribed User
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.a{fill-rule:evenodd;}techdegree
Unsubscribed User
Front End Web Development Techdegree Student 33,900 Points
Unsubscribed User
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Unsubscribed User
Front End Web Development Techdegree Student 33,900 Points

Hi Vladimir,

you did a great job but just a little bit too much... :-)

The first declaration...

for group in musical_groups:
    print(", ".join(group))

is correct and great.

But then you start the same loop declaration again - why?

Instead you can just put the conditional statement

if len(group) == 3:

in front of the print declaration of your first correct code.

You dont need a second for loop.

Makes sense?

Happy coding, Nils

PS: You can upvote my post and/or mark as "best answer" (at the bottom of my post) if it helped you. :-)