[Python] How to fix ValueError: too many values to unpack (expected 3) in Python?

I have a dataset called records, a dataset sample looks like:

user_id movie_id genre
1 1001 action
2 1002 drama
3 1003 comedy
4 1004 drama
... ... ...


I would like to iterate over records in the following way:

for user, movie, genre in records:
print(user, movie, genre)


It first prints some rows and then shows this error:

44892 113769 comedy
44892 113769 drama
...
------------------------------------------------
ValueError Traceback (most recent call last) in
----> 1 for user, movie, genre in records:
2 print(user, movie, genre)

ValueError: too many values to unpack (expected 3)


What is wrong and how to fix it?

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