[Ipython-tickets] [IPython] #146: %magic? breaks sometimes

[IPython]

#146: %magic? breaks sometimes
----------------------+-----------------------------------------------------
 Reporter:  vivainio  |       Owner:  fperez
     Type:  defect    |      Status:  new   
 Priority:  high      |   Milestone:        
Component:  ipython   |     Version:        
 Severity:  critical  |    Keywords:        
----------------------+-----------------------------------------------------
 Revision [2155] (in PyColorize) caused some regression, and, occasionally,
 %magic? (or any magic command) gives an exception that ends with:

 {{{
 C:\ipython\IPython\OInspect.py in pinfo(self, obj, oname, formatter, info,
 detai
 l_level)
    410         defln = self.__getdef(obj,oname)
    411         if defln:
 --> 412             out.write(header('Definition:\t')+self.format(defln))
    413
    414         # Docstrings only in detail 0 mode, since source contains
 them (
 we

 <type 'exceptions.TypeError'>: cannot concatenate 'str' and 'NoneType'
 objects
 }}}

 I don't know yet how to reproduce it (it happens occasionally), but once
 it starts happening it happens all the time. Restarting the ipython
 session of course normalizes it.

 format should never return "None".

 This is w/ Python 0.5.1c1.

-- 
Ticket URL: <http://projects.scipy.org/ipython/ipython/ticket/146>
IPython <http://ipython.scipy.org>
The IPython interactive Python system