Ho to solve: list indices must be integers or slices, not list

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5

I would be helpful to understand what is the objective of the code. What should it accomplish?

It is not good practice to use built-in list as name. Down the road something like this could happen:

>>> list('abc')
['a', 'b', 'c']
>>> list = [1, 2, 3]
>>> list('abc')
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: 'list' object is not callable