Manipulating the order of items in a list

Question

I am a not an experienced programmer so please bear with me.I have been trying to solve this problem for hours to no avail. I would really appreciate a solution to my problem.

Create a program that will:

reverse the order of a list if the list consists of integers alone
Will convert the list items to uppercase if the list contains words only.
Will return the same list if the list members don’t satisfy either of these two criteria

Edit: This question is a duplicate

Here is my test code:

import unittest
import switchreverse
class Reverser(unittest.TestCase):
    def test_Reverse(self):
        word_lists = [1,2,3,4,5]
        for e in word_lists:
            if type(0):
                assert word_lists.reverse()
            if type(''):
                assert word_lists.upper()
            else:
                return word_lists
if __name__ == '__main__':
    unittest.main()

Here is the code being tested:

def Switchreverser():
    word_lists = [1,2,3,4,5]
    for e in word_lists:
        if type(0):
            word_lists.reverse()
        elif type(''):
            word_lists.upper()
        else:
            return word_lists

Here is the error I am recieving:

 F
======================================================================
FAIL: test_Reverse (__main__.Reverser)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "test_switchreverse.py", line 8, in test_Reverse
    assert word_lists.reverse()
AssertionError

----------------------------------------------------------------------
Ran 1 test in 0.000s

FAILED (failures=1)

score 0 · Accepted Answer · answered Aug 21 '18 at 18:57

list.reverse modifies list in-place and returns None, so assert list.reverse() is the same as assert None which obviously raises AssertionError.

Unrelated, but if type(0) and if type('') are not going to check the type of the lists' elements. Instead, you should be doing if all(isinstance(element, int) for element in list).

Manipulating the order of items in a list

1 Answers1