1def no_it_isnt(items):
 2    result = []
 3    if type(items) != list:
 4        print('The argument must be a list!')
 5        return
 6    # traverse the reversed list and negate according to the rules
 7    for item in items[::-1]:
 8        # first check if the type is boolean
 9        if type(item) == bool:
10            result.append(not item)
11            continue
12        # if reached here -> type(item) != boolean
13        # if still 'not item' is 'False'
14        # means we have empty str, 0 or 0.0 ...
15        if not item:
16            result.append(item)
17            continue
18        # check for string
19        if type(item) == str:
20            result.append(item[::-1])
21            continue
22        # otherwise we have int or float as promised
23        result.append(-item)
24    
25    return result