Add explicit ObjectProxy.__getattr__() in C implementation so can be called from derived classes.

docs/changes.rst

@@ -1,6 +1,16 @@
 Changes
 =======
 
+Version 1.2.0
+-------------
+
+**Bugs Fixed**
+
+* When creating a custom proxy by deriving from ObjectProxy and the custom
+  proxy needed to override __getattr__(), it was not possible to called the
+  base class ObjectProxy.__getattr__() when the C implementation of
+  ObjectProxy was being used.
+
 Version 1.1.3
 -------------
 

src/_wrappers.c

@@ -1181,6 +1181,24 @@ static PyObject *WraptObjectProxy_getattro(
 
 /* ------------------------------------------------------------------------- */
 
+static PyObject *WraptObjectProxy_getattr(
+        WraptObjectProxyObject *self, PyObject *args)
+{
+    PyObject *name = NULL;
+
+#if PY_MAJOR_VERSION >= 3
+    if (!PyArg_ParseTuple(args, "U:__getattr__", &name))
+        return NULL;
+#else
+    if (!PyArg_ParseTuple(args, "S:__getattr__", &name))
+        return NULL;
+#endif
+
+    return WraptObjectProxy_getattro(self, name);
+}
+
+/* ------------------------------------------------------------------------- */
+
 static int WraptObjectProxy_setattro(
         WraptObjectProxyObject *self, PyObject *name, PyObject *value)
 {
@@ -1338,6 +1356,8 @@ static PyMethodDef WraptObjectProxy_methods[] = {
                     METH_VARARGS | METH_KEYWORDS, 0 },
     { "__exit__",   (PyCFunction)WraptObjectProxy_exit,
                     METH_VARARGS | METH_KEYWORDS, 0 },
+    { "__getattr__", (PyCFunction)WraptObjectProxy_getattr,
+                    METH_VARARGS , 0 },
     { NULL, NULL },
 };
 

tests/test_object_proxy.py

@@ -1292,6 +1292,17 @@ class TestDerivedClassCreation(unittest.TestCase):
 
 class DerivedClassAttributes(unittest.TestCase):
 
+    def test_attr_functions(self):
+
+        def function():
+            pass
+
+        proxy = wrapt.ObjectProxy(function)
+
+        self.assertTrue(hasattr(proxy, '__getattr__'))
+        self.assertTrue(hasattr(proxy, '__setattr__'))
+        self.assertTrue(hasattr(proxy, '__delattr__'))
+
     def test_setup_class_attributes(self):
 
         def function():