Pair and Expand List Elements

This function takes two lists as arguments, uses the zip function to pair corresponding elements from the two lists, and then expands the paired results into lists of two elements using a list comprehension. If the input arguments are not lists, it returns None.

Technology Stack : Built-in function zip, list comprehension

Code Type : Function

Code Difficulty : Intermediate

                
                    
def azip(arg1, arg2):
    if isinstance(arg1, list) and isinstance(arg2, list):
        return [z for x, y in zip(arg1, arg2) for z in (x, y)]
    else:
        return None