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Python Introducing Lists Build an Application Multidimensional Musical Groups

bright chibuike
bright chibuike
3,245 Points
Posted by bright chibuike
bright chibuike
3,245 Points

multidimensional musical group

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

a = 0

for group in musical_groups:

    band = ", ".join(musical_groups[a])

    if len(band )= 3:       
        print(band)
        a += 1

i have written this lines of code but still getting wrong answers

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

a = 0

for group in musical_groups:


        band = ", ".join(musical_groups[a])

        if len(band )= 3:       
            print(band)
            a += 1
Daniel Adari
Daniel Adari
3,577 Points
Daniel Adari
Daniel Adari
3,577 Points

Hi!

  • The a variable is redundant
  • You can use group as the join parameter.
  • You should check if the length of the group equals to 3, not the length of the joined string.

In your code, you check for the length of the string, which would output how many chars are in the string instead of the number of players.

My solution:

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
index = 0
for group in musical_groups:
    if len(group) == 3:
        print(', '.join(group))

Good luck!

1 Answer