Category "list"

How do i use comprehensions to output dictionary data after editing it and how to validate user input asking user to repeat

eList = [] while True: eDict = { "ID": "", "NAME": "", "EMAIL": "", "ADDRESS": "", "SALARY": ""} try:

How to append to a list in Terraform?

I have some code in the general form: variable "foo" { type = "list" default = [ 1,2,3 ] } resource "bar_type" "bar" { bar_field = "${var.foo}" } I wa

Nested for loop stop if null value using Scrapy

I use a nested for loop to get data of Weekdays. If one of the days is 'null' the loop stops at that day and doesn't get the rest of the days. I believe that I

How to get the first, middle and last element of a list scheme and prolog?

I am trying to write a function in Scheme and Prolog that returns first, middle and last item of a list. E.g., find([4,5,8,7,9],L), L = [4,8,9]. I came up with

Why does a Python list not have unique indices for contiguous duplicate elements?

I was storing a list with elements [0, 1, 2, 3, 4, 4] When I iterated through it and printed each element's index, my output was something like this: 0 1 2 3 4

react-beautiful-dnd - Invariant failed: Cannot find droppable entry with id

I was following along with a react-beautiful-dnd tutorial that uses react component classes instead of hooks. I was writing an equivalent program with modern re

RangeError (index): Invalid value: Valid value range is empty: 0

I am trying to fetch a list from API that is two methods fetchImages and fetchCategories. the first time it is showing a red screen error and then after 2 secon

RangeError (index): Invalid value: Valid value range is empty: 0

I am trying to fetch a list from API that is two methods fetchImages and fetchCategories. the first time it is showing a red screen error and then after 2 secon

Python: create a pandas data frame from a list

I am using the following code to create a data frame from a list: test_list = ['a','b','c','d'] df_test = pd.DataFrame.from_records(test_list, columns=['my_let

List within single quotes [duplicate]

I have a list which is in single quotes. '[{"Name":"name1","value":"value1"},{"name":"name2","value":"value2"}]' I receive this as an input p

Python Code line by line meaning

I have got a code and need to get the line by line meaning of this python code. marksheet = [] for i in range(0,int(input())): marksheet.append([raw_input(

How to add items to a list of lists

I aim to print a list of lists containing entry and exit times in the 24 hour decimal format from the "AM"-"PM" String format input by the user as a String arra

Python help on TKinter

i'm trying to make an brick destroyer game on python with TKinter for my school project, it's barely finished but i have a problem when it's about to break some

How to remove Duplicated elements from a List based on Two properties using Java 8 streams?

I'm trying to figure out how to write a stream in Java 8 that removes duplicate records based on a property and a condition, for example: +----+----------------

remove duplicates from 2d lists regardless of order [duplicate]

I have a 2d list a = [[1, 2], [1, 3], [2, 1], [2, 3], [3, 1], [3, 2]] How can I get the result: result = [[1,2],[1,3],[2,3]] Where dupli

Read text file and look for certain words from key word list

I am new to Python, and I am trying to build a script where I import text_file_1 that contains a body of text. I want the script to read the body of text, and l

Performance between Iterating through IEnumerable<T> and List<T>

Today, I faced a problem with performance while iterating through a list of items. After done some diagnostic, I finally figured out the reason which slowed dow

Extracting all matrices out of a nested list with varying sublist lengths in R

I have a nested list of matrices. More specifically, I have a list of matrix lists, each with a variable number of matrices. I would like to extract all the mat

Check null value in a list using linq

I have a list List<OfferComparison> Comparison. I want to check if all the items have Value == null in an if condition. How can I do it with linq? publ

sort nested list data in python

I am trying to sort a nested list in python(3.8.5). I have a list like - [['1', 'A', 2, 5, 45, 10], ['2', 'B', 8, 15, 65, 20], ['3', 'C', 32, 35, 25, 140], [