Terry J. Reedy <tjre...@udel.edu> added the comment:
I consider it a nice feature of Python that all builtin objects, and, AFAIK (and Josh, apparently), all stdlib class instances, have a boolean value. (I am aware of numpy's element-wise behavior.) I hate to give this up. This is part of Python's general avoidance of singular exceptions and exceptions to exceptions. This proposal would be the latter: "An object is truthy, unless its class makes it false, unless it is NotImplemented and a TypeError." If this exception is made, I expect that there will be proposals to extend the exception to other objects, such as Ellipsis. ---------- nosy: +terry.reedy stage: -> test needed type: behavior -> enhancement versions: +Python 3.8 _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue35712> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
