Error setting a breakpoint when not using an editor (hook synchronize_with_editor)

When I put a breakpoint in my application using:

        from IPython.Debugger import Tracer;
        Tracer()()

I get the following breakpoint:
...
 File "/usr/lib/python2.4/site-packages/ipython-0.9.1-py2.4.egg/IPython/Debugger.py", line 288, in interaction
    OldPdb.interaction(self, frame, traceback)
  File "pdb.py", line 157, in interaction
    self.print_stack_entry(self.stack[self.curindex])
  File "/usr/lib/python2.4/site-packages/ipython-0.9.1-py2.4.egg/IPython/Debugger.py", line 339, in print_stack_entry
    __IPYTHON__.hooks.synchronize_with_editor(filename, lineno, 0)
AttributeError: 'function' object has no attribute 'synchronize_with_editor'

I guess it can be easily fixed. You just need to check if "hooks" has the method "syncronize_with_editor".