Can you please write this in rookie python code. I'm having a hard time understanding the the return statement. Thanks

def sort_func(lst): # if list is empty return empty list if not lst: return [] # else check with first character and sort with the following character # note that a space is considered alphabetically first return (sort_func([x for x in lst[1:] if x < lst[0]])+ [lst[0]] + sort_func([x for x in lst[1:] if x >= lst[0]]))