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Python Introducing Lists Build an Application Multidimensional Musical Groups

Posted by Talent Majuru
Talent Majuru
1,732 Points

How to loop through a 2 dimensional list with a separator.

the output should give all members separated by ", "

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:
    for member in group:
        print(member + ", ")

2 Answers

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

The "join" function is very handy for this task, and can save you from needing a 2nd loop. You attach it to a string containing your desired separator, and then pass the list of items to combine as the argument.

Talent Majuru
Talent Majuru
1,732 Points
Talent Majuru
Talent Majuru
1,732 Points

Thanks a lot, got it!

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

Talent Majuru — Glad to help. You can mark a question solved by choosing a "best answer".
And happy coding!