Comment 5 for bug 142399

It is almost fine with me -- almost, because we should have a safe 'hasattr' as well. I would replace the builtin one by a senseful one, but Jim already objected. Then, we should have one under a different name,
e.g. "safehasattr" or "zhasattr". This can then be used whereever
we would like to use "hasattr" and especially in "basehasattr"
or "hasattr_unacquired".