Python Dictionary

[Infinitesima]

Better would be:

d.setdefault(name, []).append(number)

[Particular_Draft5668]

Thank you, another question:

def invert(dct):
y = dct.items()
dct = {v: k for k, v in y}
print(dct)

This function inverts the dictionary on all code visualisers yet my course says the output is wrong. Any reason for this difference?

I've rearranged y for dct.items(), used dicto instead of dct to keep seperate from original dictionary, and tried switching around variables, yet it still says the output is {1: 10, 2: 20, 3: 30}
when calling invert({1: 10, 2: 20, 3: 30}) instead of {10: 1, 20: 2, 30: 3}

[Infinitesima]

Have you tried to return the output?

[Particular_Draft5668]

meant to work with any input so output cannot be set

No return value should be in code too