Test-suite fixes for python -classic

These are mostly workarounds for static class members not being supported for
old style classes, as documented in Python.html, "C++ classes".

Examples/test-suite/python/python_append_runme.py

@@ -1,12 +1,18 @@
 from python_append import *
 
+def is_new_style_class(cls):
+  return hasattr(cls, "__class__")
+
 # test not relevant for -builtin
 if is_python_builtin():
   exit(0)
 
 t=Test()
 t.func()
-t.static_func()
+if is_new_style_class(Test):
+  t.static_func()
+else:
+  Test_static_func()
 
 if grabpath() != os.path.dirname(mypath):
   raise RuntimeError("grabpath failed")