Incorporate suggestions from Ville.

IPython/Extensions/ipy_pretty.py

@@ -4,7 +4,8 b' Register pretty-printers for types using pretty.for_type() or'
 pretty.for_type_by_name(). For example, to make a pretty-printer for numpy dtype
 objects, add the following to your ipy_user_conf.py::
 
-    from IPython.Extensions import ipy_pretty, pretty
+    from IPython.Extensions import ipy_pretty
+    from IPython.external import pretty
 
     def dtype_pprinter(obj, p, cycle):
         if cycle:
@@ -31,7 +32,7 b' objects, add the following to your ipy_user_conf.py::'
 import IPython.ipapi
 from IPython.genutils import Term
 
-from IPython.Extensions import pretty
+from IPython.external import pretty
 
 ip = IPython.ipapi.get()
 
@@ -41,8 +42,9 b' def pretty_result_display(self, arg):'
     Called for displaying the result to the user.
     """
     
-    if self.rc.pprint:
-        out = pretty.pretty(arg, verbose=getattr(self.rc, 'pretty_verbose', False))
+    if ip.options.pprint:
+        verbose = getattr(ip.options, 'pretty_verbose', False)
+        out = pretty.pretty(arg, verbose=verbose)
         if '\n' in out:
             # So that multi-line strings line up with the left column of
             # the screen, instead of having the output prompt mess up
@@ -50,12 +52,7 b' def pretty_result_display(self, arg):'
             Term.cout.write('\n')
         print >>Term.cout, out
     else:
-        # By default, the interactive prompt uses repr() to display results,
-        # so we should honor this.  Users who'd rather use a different
-        # mechanism can easily override this hook.
-        print >>Term.cout, repr(arg)
-    # the default display hook doesn't manipulate the value to put in history
-    return None 
-
-ip.set_hook('result_display', pretty_result_display)
+        raise TryNext
+
+ip.set_hook('result_display', pretty_result_display, priority=99)