
Meaning of list[-1] in Python - Stack Overflow
Sep 19, 2018 · All your return c.most_common()[-1] statement does is call c.most_common and return the last value in the resulting list, which would give you the least common item in that …
List of zeros in python - Stack Overflow
Dec 16, 2011 · See why [] is faster than list() There is a gotcha though, both itertools.repeat and [0] * n will create lists whose elements refer to same id. This is not a problem with immutable …
What is the difference between Python's list methods append and …
Oct 31, 2008 · my_list + another_list creates a third list in memory, so you can return the result of it, but it requires that the second iterable be a list. my_list += another_list modifies the list in …
Get unique values from a list in python - Stack Overflow
Oct 15, 2012 · Because it inherits from a list, it basically acts like a list, so you can use functions like index() etc. And because it returns true or false, you can find out if appending succeeded …
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 …
How to concatenate (join) items in a list to a single string
Sep 17, 2012 · @Wouter, it will not. On the one hand, only lists of strings can be joined; so list.join would be inappropriate for an arbitrary list. On the other, the argument of str.join can be any …
How to make a new List in Java - Stack Overflow
May 13, 2009 · List is an interface, and the instances of List can be created in the following ways: List<Integer> list=new ArrayList<Integer>(); List<Integer> llist=new LinkedList<Integer>(); …
How do I subtract one list from another? - Stack Overflow
However, this still has a problem from quantumSoup's version: It requires your elements to be hashable. That's pretty much built into the nature of sets.** If you're trying to, e.g., subtract a …
What is the difference between an Array, ArrayList and a List?
Also, System.Array supports multiple dimensions (i.e. it has a Rank property) while List and ArrayList do not (although you can create a List of Lists or an ArrayList of ArrayLists, if you …
What is the syntax to insert one list into another list in python?
Sep 20, 2010 · List slicing is quite flexible as it allows to replace a range of entries in a list with a range of ...