In python, as far as I know, there are at least 3 to 4 ways to create and initialize lists of a given size: Simple loop with append: my_list = [] for i in range(50): my_list.append(0) Simple ...

397 How do I concatenate two lists in Python? As of 3.9, these are the most popular stdlib methods for concatenating two (or more) lists in Python. ... * A solution will qualify as a …

Python slicing is a computationally fast way to methodically access parts of your data. In my opinion, to be even an intermediate Python programmer, it's one aspect of the language that it …

Dec 3, 2016 · If your list of lists comes from a nested list comprehension, the problem can be solved more simply/directly by fixing the comprehension; please see How can I get a flat result …

Sep 19, 2018 · 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 …

Oct 15, 2012 · But that's what we want in order to get the unique elements from a list with duplicates, we want to .append them into a new list only when we they came across for a fist …

Feb 2, 2014 · Note that the above code snippets work only for Python 2.x, where range() produces an actual list of integers. For Python 3.x, the function returns a Range object which …

To split on other delimiters, see Split a string by a delimiter in python. To split into individual characters, see How do I split a string into a list of characters?.

Evaluate an expression node or a string containing only a Python literal or container display. The string or node provided may only consist of the following Python literal structures: strings, …

Jul 8, 2018 · Is there a way in Python to list all installed packages and their versions? I know I can go inside python/Lib/site-packages and see what files and directories exist, but I find this very …