f | write async vert.x code | Reactive Programming library

I have a dynamic query that adds WHERE clauses according to the parameters received:

I am beginning to learn the basics of webscraping with Python, but I am having a little trouble with my code. I am trying to scrape the weather from the front page of 'yahoo.com':

I am grouping columns and identifying rows that have different values for each group. For example: I can group columns A,B,C,D and delete column A because it is different (Row 2 is 2.1). Also, I can group columns E,F,G,H and delete column G because Row 1 (Row 0 is Blue).

I'm trying to read a file with this argument {year} inside it.

Inside this file there is this string: SELECT * FROM TABLE WHERE YEAR = {year}

I'd like to read this file with Python f-strings to use the query after.

The expected result looks like this: SELECT * FROM TABLE WHERE YEAR = 2019

I tried this:

The title is the required predicate and here are few sample queries

I am trying to define a subroutine in Raku whose argument is, say, an Array of Ints (imposing that as a constraint, i.e. rejecting arguments that are not Arrays of Ints).

Question: What is the "best" (most idiomatic, or straightforward, or whatever you think 'best' should mean here) way to achieve that?

Examples run in the Raku REPL follow.

What I was hoping would work

I have this code which prints multiple tables

I am trying to write the following C code in Metal Shading Language inside of a kernel void function:

Suppose I have a Pandas dataframe with two identifier columns like this: