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  1. 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?

  2. 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 = …

  3. 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 …

  4. Spring Boot YAML configuration for a list of strings

    Nov 2, 2014 · In the yaml, the list of values for the ArrayList can be a comma delimited list. In my case, I have many values, so a compact list is cleaner than an item per line.

  5. 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?

  6. 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 …

  7. join list of lists in python - Stack Overflow

    Apr 4, 2009 · Closed 9 years ago. Is the a short syntax for joining a list of lists into a single list ( or iterator) in python? For example I have a list as follows and I want to iterate over a,b and c.

  8. 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 …

  9. 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 …

  10. 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 …