Tuple arguments were rejected in the PEP.

```

Python 3.10.0a0 (heads/master:bac170cd93, May 20 2020, 12:20:34)
[Clang 10.0.0 (clang-1000.11.45.5)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> 'abc=='.removesuffix('=')
'abc='
>>> 'abc=='.removesuffix(('==', '='))
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: removesuffix() argument must be str, not tuple

```

But if the API was there, I agree this would work, not sure what David is saying about needing to call twice. On the other hand, this example demonstrates well how a tuple is potentially confusing. What happens if you call `'abc=='.removesuffix(('=', '=='))`?