Python nested loops inside dict Problem Description: I have a dict exchange rates. It has 3 levels: rates, date and currency. "rates": { "2022-11-30": { "AED": 0.06019, "AFN": 1.442036, "ALL": 1.836137, "AMD": 6.464451, "ANG": 0.029525, "AOA": 8.304432, "ARS": 2.741601, ……………. etc. I want to write a loop that first will capture the date in a … Read more
Python : Merge three lists of tuples according the first element of the tuple to add the seconds elements Problem Description: I have three lists of tuples of size 2 given by : a1 = [(47, 100)] a2 = [(47, 100), (0, 86), (4, 86)] a3 = [(47, 100), (39, 90)] I want to merge … Read more
Check if the corresponding elements in two different list of dataframes are equal Problem Description: I have a two separate list of dataframes. The first list of dataframe is lst1 $`1` [1] 8.523769e-05 6.615035e-05 1.177740e-04 1.173578e-04 8.798214e-05 6.328218e-05 4.768889e-05 3.658710e-05 [9] 1.294623e-05 1.179838e-06 1.010590e-06 5.204994e-07 2.128048e-06 6.876634e-06 6.011750e-06 5.160903e-05 [17] 5.318722e-05 1.029438e-04 1.173397e-04 $`2` [1] … Read more
Why cant I use .sum in a Stateful Widget? Problem Description: I have built out a stateless widget that I now need to change to a stateful widget. Within my stateless widget, I have a function… SumOfRoundedTankValue() { List<double> numbers = []; port.ports.tankSpecs.forEach((e) { numbers.add(double.parse(e.defUsGallons)); }); final sum = numbers.sum; return (sum); } Why does … Read more
how to use lombok singular different Problem Description: @Data @Builder public class CarViews { @Singular("carViewList") private List<CarResponse> carViewList; } private CarViews prepareCarList() { CarResponse carResponse = CarResponse.builder().build(); return CarViews.builder().carViewList(carResponse).build(); } I am using singular like this, is that using right? Should I use it differently? It does not return error, it works, but I wonder, … Read more
How to make a show instance for a List with foldr? Problem Description: I want to write my own show instance for my Datatype "My list". So far my approach works, but I always have a comma at the end. I already tried to start the Fold with the last element and remove it from … Read more
how to arrange list of lists of dictionaries as a table with key name as header in python Problem Description: I want to create a data frame as shown in the last section of my question. the explanation is as follows, I have this: results df = pd.DataFrame(results) df output : results: farm_power_output farm_unwaked_power_output farm_wind_direction … Read more
How do I check if a list contains a tuple in C# Problem Description: Before adding a new tuple, I want to check if a list already contains that tuple and avoiding adding it to the list again, how would I got about doing this? I’m aware for integers and strings you would just write … Read more
remove duplicate of specific string from the list of string Problem Description: I want to remove specific string from the list of string. Suppose I have a list like this: list_ex = [‘I’, ‘went’, ‘to’, ‘the’, ‘big’, ‘conference’, ‘,’, ‘I’, ‘presented’, ‘myself’, ‘there’, ‘.’, ‘After’, ‘the’, ‘<word>conference</word>’, ‘<word>conference</word>’, ‘,’, ‘I’, ‘took’, ‘a’, ‘taxi’, ‘to’, ‘go’, … Read more
extract the domain name from the urls in another list Problem Description: extract the domain name from the urls in another list. Also you need to extract the ending string which the url ends with. For example, https://www.example.com/market.php — In this example, domain name is www.example.com and the ending string is php Extract the domains … Read more