> Another round, this time with a metaclass. As you have found partial() does > not work as a method because it's not a descriptor (i. e. no __get__() > method). Instead you can try a closure: > > def make_method(a): > underlying = getattr(SomeOtherClass, a) > @functools.wraps(underlying) > def _meth(self, *args, **kw): > return underlying(self._instance, *args, **kw) > return _meth > > class SomeMeta(type): > def __new__(cls, name, parents, dct): > for a in dir(SomeOtherClass): > if a[0] == "_": continue > dct[a] = make_method(a) > return super(SomeMeta, cls).__new__(cls, name, parents, dct)
Dang, Peter... That looks like it will do exactly what I need. Here's help on SomeOtherClass with its one method: class SomeOtherClass(__builtin__.object) | Methods defined here: | | meth1(self) | meth1 doc ... And, here's SomeClass (__metaclass__ = SomeMeta), which defines meth2, but steals meth1 from SomeOtherClass: class SomeClass(__builtin__.object) | Methods defined here: | | meth1(self, *args, **kw) | meth1 doc | | meth2(self) | meth2 doc ... With a bit of introspection in make_method (or an extension of functools.wraps), I can probably make SomeClass.meth1 have the same signature as SomeOtherClass.meth1. Thx, Skip -- https://mail.python.org/mailman/listinfo/python-list
