Question/Issue with int() function

[QuinceyStoker]

New to coding so I’m struggling a bit. I have a list of dictionaries that I need to re-format using the key “year” which is a string. So I know I need to use the int() function but I must not be doing it right. Here is the code:

works_by_year = []
for author_dict in works:
    year = int(author_dict["year"])
    if year not in works_by_year:
        works_by_year["year"] = []
        works_by_year["year"].append(author_dict)

works_by_year[“year”] =
~~~~~~~~~~~~~^^^^^^^^
TypeError: list indices must be integers or slices, not str

Can someone please explain to me what I am doing wrong and how to fix it?

[sanity]

Error says that it is tried to use string as index of the list.

The string in question here is "year", and the list - works_by_year.

[nkp1111]

You can access a list item
list =
list[n] where n is integer

You can access item in dictionary
dict = {}
dict[“key”] where key can be integer or string whatever you use

Instead of list you should use dictionary
works_by_year = {}