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Python Introducing Lists Build an Application Multidimensional Musical Groups

Bummer: AssertionError: 'Ad Rock, MCA, Mike D.' not found in 'Ad Rock , MCA , Mike D.\nJohn Lennon , Paul McCartney

The output is correct, but gives me the AssertionError. what is this error

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 her

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

1 Answer

The code you have on this page will pass task 1. The assertion error doesn't match. That error would show if you included a space before the comma in your join like this:

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

Thanks, it worked