By using a : colon in the list index, you are asking for a slice, which is always another list. In Python you can assign values to both an individual item in a list, and to a slice of the list.
What is the difference between list [1] and list [1:] in Python?
The second, list(), is using the actual list type constructor to create a new list which has contents equal to the first list. (I didn't use it in the first example because you were overwriting that name in your code - which is a good example of why you don't want to do that!)
When reading, list is a reference to the original list, and list[:] shallow-copies the list. When assigning, list (re)binds the name and list[:] slice-assigns, replacing what was previously in the list. Also, don't use list as a name since it shadows the built-in.
The first way works for a list or a string; the second way only works for a list, because slice assignment isn't allowed for strings. Other than that I think the only difference is speed: it looks like it's a little faster the first way. Try it yourself with timeit.timeit () or preferably timeit.repeat ().
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In this case you need to check the following: You've selected the correct site and list (it happens!) 'Limit Columns by View' is set to "Use All Columns (Do Not Limit)" You have clicked 'Show all' in the advanced parameters section of the Update Item action The columns are editable in the sharepoint list 'e.g. in edit in grid' (by the user set up in the SharePoint connection.) and that they're ...