Meaning of list[-1] in Python - Stack Overflow
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 …
How can I show all the branches in a repository? - Stack Overflow
Jan 12, 2019 · I have a Git repository. How can I show all its branches? Are the following two commands supposed to show all the branches? If yes, why do they not show branch master? I …
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 …
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 …
How to list all installed packages and their versions in Python?
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 …
Get a list from Pandas DataFrame column headers
I want to get a list of the column headers from a Pandas DataFrame. The DataFrame will come from user input, so I won't know how many columns there will be or what they will be called. …
pandas dataframe index: to_list () vs tolist () - Stack Overflow
Sep 9, 2019 · to_list () is a method of Pandas dataframes that returns a list representation of the dataframe. Although both methods return the same output, their differences lie in their origins …
How to list containers in Docker - Stack Overflow
May 30, 2013 · For example list and start of containers are now subcommands of docker container and history is a subcommand of docker image. These changes let us clean up the …
IEnumerable vs List - What to Use? How do they work?
Sep 2, 2010 · IEnumerable describes behavior, while List is an implementation of that behavior. When you use IEnumerable, you give the compiler a chance to defer work until later, possibly …
Get unique values from a list in python - Stack Overflow
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 …