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Python Introducing Lists Build an Application Multidimensional Musical Groups

Posted by Rigby Adams
Rigby Adams
1,231 Points

having issues looping

I am unable to complete this challenge even though i don't understand what i am doing wrong. Can someone please help?

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"],
]
for band in musical_groups:
    if band == len(3):
        print(', '.join(band))

1 Answer

Jennifer Nordell
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STAFF
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Jennifer Nordell
Treehouse Teacher
Jennifer Nordell
.a{fill-rule:evenodd;}techdegree
Jennifer Nordell
Treehouse Teacher

Hi there, Rigby Adams ! You are exceptionally close. Right now, what you're saying is print the band if it's equal to the length of 3. But 3 doesn't have a length. What you mean to be saying is print the band if the length of the band is equal to 3.

You need to run len() on band :smiley:

len(band) == 3

Hope this helps! :sparkles: