New submission from Robert Smallshire: The documentation for the int(x) constructor explains that if possible, it delegates to x.__int__(). The documentation does not explain that there is a fallback to x.__trunc__() if x.__int__() is not available.
The only mention of __trunc__ in the Python documentation is in the entry for math.trunc; the documentation for the numbers module does not describe the underlying special methods. Given that all Real numbers are required to implement __trunc__ but only Integral subclasses are required to implement __int__ this could be important to implementers of other Real types, although in practice I imagine that most Real types will implement __int__ as float does. ---------- assignee: docs@python components: Documentation messages: 262941 nosy: Robert Smallshire2, docs@python priority: normal severity: normal status: open title: Documentation for int constructor mentions __int__ but not __trunc__ type: enhancement versions: Python 3.5 _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue26701> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
