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Meaning of list[-1] in Python - Stack Overflow I have a piece of code here that is supposed to return the least common element in a list of elements, ordered by commonality: def getSingle(arr): from collections import Counter c = Counte
What is the difference between list [1] and list [1:] in Python? 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
python - What does list [x::y] do? - Stack Overflow list[a:b:c], a is the starting index, b is the ending index and c is the optional step size This will give you a list starting at index a (inclusive) and ending at index b (exclusive) picking elements at a step of c For example,
What is the difference between list and list [:] in python? 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
Python: list of lists - Stack Overflow The first, [:], is creating a slice (normally often used for getting just part of a list), which happens to contain the entire list, and thus is effectively a copy of the list The second, list(), is using the actual list type constructor to create a new list which has contents equal to the first list
Make a list - Computer - Google Keep Help Reorder list items On your computer, go to Google Keep Choose a list Point to the item you want to move At the left, click and hold Move Drag the item where you want
slice - How slicing in Python works - Stack Overflow 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 ()
. net - Creating a List of Lists in C# - Stack Overflow A list of lists would essentially represent a tree structure, where each branch would constitute the same type as its parent, and its leaf nodes would represent values