demo_ref_keyword_assert2.py:
x = "hello" #if condition returns False, AssertionError is raised: assert x == "goodbye", "x should be 'hello'"
C:\Users\My Name>python demo_keyword_assert2.py
Traceback (most recent call last):
File "demo_ref_keyword_assert2.py", line 4, in <module>
assert x == "goodbye", "x should be 'hello'"
AssertionError: x should be 'hello'