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Python Introducing Lists Build an Application Multidimensional Musical Groups

zheshuozhang
PLUS
zheshuozhang
Courses Plus Student 820 Points
Posted by zheshuozhang
zheshuozhang
Courses Plus Student 820 Points

how can I fix my code

how to fix the problem

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 musical in musical_groups:
    musical = ", ".join(musical_groups[0] + musical_groups[1] + musical_groups[2] + musical_groups[3] + musical_groups[4] + musical_groups[5] + musical_groups[6])

musical1 = musical.split(", ")
print(musical1[0], musical1[1], musical1[2], musical1[7], musical1[8], musical1[9], musical1[23], musical1[24], musical[25])

1 Answer

Steven Parker
Steven Parker
231,269 Points
Steven Parker
Steven Parker
231,269 Points

Here's a few hints:

  • the argument to "join" should be just a single list name
  • the list you'll want to join is the one for a single group, "musical" (not "musical_groups")
  • you only need to "print" the result of the join, not assign it
  • since you'll be printing inside the loop, you won't need any of the code after the loop
zheshuozhang
zheshuozhang
Courses Plus Student 820 Points
zheshuozhang
zheshuozhang
Courses Plus Student 820 Points

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 musical in musical_groups: if len(musical) == 3: print(",".join(musical))

After I fix the code why there still have errors? I think the output should be correct. Can you help me to check it?

Steven Parker
Steven Parker
231,269 Points
Steven Parker
Steven Parker
231,269 Points

Your "join" string has only a comma. The challenge wants "the members joined together with a ", " comma space"