RuntimeError in completer

[jstenar]

Using master f0437d2 I get "RuntimeError: can't re-enter readline" when completing on properties of some objects. I have gotten it on proxy objects in Pyro (python remote objects) and some other objects I don't recall right now. This problem does not appear on 0.10.2.

I get a crashreport ( https://gist.github.com/1051868 ) but ipython does not go down completely. There are two files in the gist, the first one is the crash report and the second one is the output that I got at the terminal that was not part of the crash report.

/Jörgen

[jstenar]

By catching both ValueError and AttributeError in utils/dir2 as shown below, the error disappears:

if hasattr(obj, 'trait_names'):
    try:
        words.extend(obj.trait_names())
        may_have_dupes = True
    except (TypeError, AttributeError):
        # This will happen if `obj` is a class and not an instance.
        pass

# Support for PyCrust-style _getAttributeNames magic method.
if hasattr(obj, '_getAttributeNames'):
    try:
        words.extend(obj._getAttributeNames())
        may_have_dupes = True
    except (TypeError, AttributeError):
        # `obj` is a class and not an instance.  Ignore
        # this error.
        pass

[minrk]

Thanks for tracking it down! It's pretty terrible when remote object libraries lie to hasattr. I'll go ahead and make the change.