Category "list"

Fast concatenation of bytes() in python3

I have an array of byte-strings in python3 (it's an audio chunks). I want to make one big byte-string from it. Simple implementation is kind of slow. How to do

Check if value inside the list in dictionary values [duplicate]

Lets say I have a dictionary: dict = {'A': ['one', 'two'], 'B': [3, 4, 5, 5, 6, 7, 8, 9, 10], 'C': [11, 12]} I want to check if some value is

How to convert list of Hex values into Ascii string in python?

I have a list of Hex value variables in my python code. I need to convert into ASCII string. Can someone please suggest to me, how to convert it? HexList = [

Split list by sum of sublist items

I have a list of sublists with file names and sizes. I need to split that list into sublists based on the criteria that each splitted sublist must have a total

How to print all the unique combinations of a list?

list_a = [1, 2, 3] I want to print all the unique combinations from the list like this [ [1], [2], [3], [1, 2], [1, 3], [2, 3], [1, 2, 3] ] Note: Without usin

How to access a class object inside a list when a value for one of the class attributes is given in Python?

I have a list of class objects and I want to know how can I print a particular class object inside the list given a value for one of its attributes. Here is my

Code in Python that count repeated elements and return the item repeated most times and how many times

I have a list with integers, I need to find which item repeat the most, then the function should return two variables (value, number) value is the repeated elem

Raku list addition operator `Z+` 'fails' unless one of the lists is forced

I'm struggling to understand why the zip-add Z+ operator does not work on some cases. I have some 2-element lists that I'd like to sum. These work as expected w

python list No displacement

I have a list [{'sender': '0', 'recipient': '15839597-107f-4166-aff1-ac32d3794748', 'amount': 50}] and call this list elsewhere for create sha256 but list item

How can I access and iterate through an ArrayList of Linked list element?

I am trying to write a code of adjacency list implementation of the graph ADT. private ArrayList<LinkedList<Integer>> adjLists ; but I don't know

How do you print an entire row of a list made of words?

I have simplified my question where I just have a 2x2 list of words. I'm trying to print an entire row but it evidently doesn't work the same as with a list of

How can I pass the list to the component variable in Laravel?

How can I pass the list to the component variable? I tried to add elements of a list in @php tags like this , for now,, in the future, I will fetch this list fr

error: Incompatible return value type (got "Tuple[Tuple[float, float], ...]", expected "List[Any]")

Context While trying to implement static typing, I'm experiencing some difficulties in specifying the return type of the following function: def create_hexagon_

Best way to sort BOTH prefix and suffix with custom sorting

So I have a list of codes, something like: (I.-) (I.+) (I.0) (B.+) (B.0) (B.-) ... (No value) (N/A) I was able to sort them but we have a "custom requirement" t

TypeError: descriptor 'append' for 'list' objects doesn't apply to a 'float' object

I am trying to solve a problem and trying to get input from the user and append that in a list. But i am getting this error message. if __name__ == '__main__':

Create a dictionary from one key and list of tuples

I have a list of tuples. For example: L = [(334, 269, 461, 482), (182, 178, 307, 471),(336, 268, 466, 483), (183, 177, 304, 470)] The length of the list someti

Repeating each element in a list

I have two lists: x = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9] y= [5, 2, 3, 2, 3, 3, 3, 3, 5, 3] I want to create a new list that contains of multiplies x's first eleme

How to split a string in to list where the number of string in the list is defined?

So if I have a string: s = "this is just a sample string" I want to obtain a list of 3 characters each: l = ["thi", "s i", "s j", "ust", " a ", ...]

How to convert List to Map?

Recently I have conversation with a colleague about what would be the optimal way to convert List to Map in Java and if there any specific benefits of doing so.

how can I remove some NA rows but not all of them

I have multiple data frames with information about listed companies from the year 2000 So I want to put them in a list (lets call it df) because I want to do re