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 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 …
What is the difference between List.of and Arrays.asList?
Oct 5, 2017 · @Sandy Chapman: List.of does return some ImmutableList type, its actual name is just a non-public implementation detail. If it was public and someone cast it to List again, …
How do I make a flat list out of a list of lists? - Stack Overflow
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 from a list …
Checking if any elements in one list are in another [duplicate]
Apr 22, 2013 · The second action taken was to revert the accepted answer to its state before it was partway modified to address "determine if all elements in one list are in a second list".
c# - string.Join on a List<int> or other type - Stack Overflow
Aug 31, 2010 · string.Join on a List<int> or other type Asked 15 years, 3 months ago Modified 2 years, 7 months ago Viewed 141k times
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 …
Use a list of values to select rows from a Pandas dataframe
list_of_values doesn't have to be a list; it can be set, tuple, dictionary, numpy array, pandas Series, generator, range etc. and isin() and query() will still work.
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.
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. …