On Thu, May 05, 2005 at 01:35:09AM -0700, Max Derkachev wrote: > Good day to all. > > Some time ago I'd been playing with a framework which uses dynamic > class creation havily. Say, I could do: <snip> > > #well, try this with the new-style class > class A(object): > pass > > # the new-style __dict__ is a dictproxy object > A.__dict__[meth_name] = lambda self: type(self) > >>Traceback (most recent call last): > >> File "<interactive input>", line 1, in ? > >>TypeError: object does not support item assignment > > Is there other way to add/change methods to new-style classes > dynamically?
>>> import new >>> dir(new) ['__builtins__', '__doc__', '__file__', '__name__', 'classobj', 'code', 'function', 'instance', 'instancemethod', 'module'] >>> def foo(self): ... print "FOO!" >>> A.foo = new.instancemethod(foo, None, A) # func, object, class >>> A.foo <unbound method A.foo> >>> a = A() >>> a.foo <bound method A.foo of <__main__.A object at 0xb7e0b4cc>> >>> a.foo() FOO! -jackdied -- http://mail.python.org/mailman/listinfo/python-list
