
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 …
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 …
How can I pass a list as a command-line argument with argparse?
Don't use quotes on the command line 1 Don't use type=list, as it will return a list of lists This happens because under the hood argparse uses the value of type to coerce each individual given argument …
python - Access item in a list of lists - Stack Overflow
Jul 19, 2014 · 67 If I have a list of lists and just want to manipulate an individual item in that list, how would I go about doing that? For example: List1 = [[10,13,17],[3,5,1],[13,11,12]] What if I want to take …
Array versus List<T>: When to use which? - Stack Overflow
Jan 12, 2009 · A List uses an internal array to handle its data, and automatically resizes the array when adding more elements to the List than its current capacity, which makes it more easy to use than an …
How to group dataframe rows into list in pandas groupby
Given a dataframe, I want to groupby the first column and get second column as lists in rows, so that a dataframe like: a b A 1 A 2 B 5 B 5 B 4 C 6 becomes A [1,2] B [5,5,4] C [6] How do I do this?
c# - How to initialize a list of strings (List<string>) with many ...
Oct 28, 2013 · How is it possible to initialize (with a C# initializer) a list of strings? I have tried with the example below but it's not working. List<string> optionList = new List<string> { "
Certified models list - ChromeOS Flex Help - Google Help
Oct 7, 2025 · To ensure a consistent and high-quality experience, Google individually certifies and maintains a list of models that you can use with ChromeOS Flex. Model status Certified —Models …
c# - define a List like List<int,string>? - Stack Overflow
I need a two column list like: List<int,string> mylist= new List<int,string> (); it says using the generic type System.collection.generic.List<T> requires 1 type arguments.
How do I concatenate two lists in Python? - Stack Overflow
Do you want to simply append, or do you want to merge the two lists in sorted order? What output do you expect for [1,3,6] and [2,4,5]? Can we assume both sublists are already sorted (as in your …