Jason Rhinelander 7b8e3f9ec8 Re-add (but deprecated) bool operator for attr/items ...

PR #425 removed the bool operator from attribute accessors.  This is
likely in use by existing code as it was the only way before #425 added
the `hasattr` function to check for the existence of an attribute, via:

    if (obj.attr("foo")) { ... }

This commit adds it back in for attr and item accessors, but with a
deprecation warning to use `hasattr(obj, ...)` or `obj.contains(...)`
instead.

2016-10-02 16:39:51 -04:00

..

pybind11

Re-add (but deprecated) bool operator for attr/items

2016-10-02 16:39:51 -04:00