I did the same thing. However I am not sure if its faster than the hardcoded solution

very clever!

Is that solution same as if function that select in each operator or it will process all the operator function?

getRandomNumber :: Int
getRandomNumber = 4 -- chosen by fair dice roll, guaranteed to be random.

Every thing that is hard coded or using simple functions should be faster

This looks nice, but by defining 'string.lower()' within the for loop instead of a variable outside of it requires python to perform the lower function during each iteration of the for loop instead of just once if written outside the for loop. Which imo makes this a lesser candidate for 'best practice' than other solutions.

No, it's not. In fact, over a high number of invocations of the function, it probably actually be slower (allocation + hashing + lookup vs string comparison) The point of this isn't performance, it's convenience.

This looks very nice. But could anyone tell if this is really faster than the mundane if else control flow method?

Thanks.

exactly the same as mine !

perfect

Smart!

This is so smart