pytest does not respect the singleton pattern in Python 3.9 and 3.10

[webartifex]

one and zero are singletons. Yet, the following does not work with pytest in Python 3.9 and 3.10:

def __eq__(self, other: object) -> bool:
    try:
        other = GF2Element(other)
    except (TypeError, ValueError):
        return False
    else:
        return self is other

return self is other is always False, even if a test case compares, for example, one to one or a one-like other.

For now, use the following fix: return int(self) == int(other)

This issue has no high priority because it only appears in pytest for older Python versions.

[webartifex]

Without the temporary fix above, the following GitHub actions don't run successfully:

• tests
• test-coverage