What's the difference between [] and {} vs list() and dict()?
I understand that they are both essentially the same thing. But in terms of creating an empty list or dict, are there any differences?
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 = …
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 …
How to cast List<Object> to List<MyClass> - Stack Overflow
Nov 29, 2016 · (List<Customer>)(Object)list; you must be sure that at runtime the list contains nothing but Customer objects. Critics say that such casting indicates something wrong with …
c# - How to initialize a list of strings (List<string>) with many ...
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> { "
python - Access item in a list of lists - Stack Overflow
Jul 19, 2014 · You can access the elements in a list-of-lists by first specifying which list you're interested in and then specifying which element of that list you want. For example, 17 is …
Most efficient way to find if a value exists within a C# List
Apr 17, 2013 · In C# if I have a List of type bool. What is the fastest way to determine if the list contains a true value? I don’t need to know how many or where the true value is. I just need to …
Python list vs. array – when to use? - Stack Overflow
The list is the part of python's syntax so it doesn't need to be declared whereas you have to declare the array before using it. You can store values of different data-types in a list …
How to initialize List<String> object in Java? - Stack Overflow
Nov 15, 2012 · List is an Interface, you cannot instantiate an Interface, because interface is a convention, what methods should have your classes. In order to instantiate, you need some …
How do I list all files of a directory? - Stack Overflow
Jul 9, 2010 · How can I list all files of a directory in Python and add them to a list?