Processing module test72 (test_input/test72.py)...

Warnings...

test_input/test72.py:8: Setting class attribute (y) not set in __init__
test_input/test72.py:13: Setting class attribute (z) not set in __init__
test_input/test72.py:23: No class attribute (z) found
test_input/test72.py:24: Setting class attribute (y) not set in __init__