>>> t = ()
>>> assert *t # Standard form, raises SyntaxError
  File "<python-input-7>", line 1
    assert *t
           ^
SyntaxError: invalid syntax
>>> assert (*t, "error message") # New syntax is not used, passes due to the second element
<python-input-9>:1: SyntaxWarning: assertion is always true, perhaps remove parentheses?

>>> assert (*t,)
<python-input-6>:1: SyntaxWarning: assertion is always true, perhaps remove parentheses?
Traceback (most recent call last):
  File "<python-input-6>", line 1, in <module>
    assert (*t,)
           ^^^^^
AssertionError
>>>