[wxPython-users] Calling parent functions from an embedded pyShell??

[Patrick K. O'Brien]

On Nov 14, 2007, at 4:24 PM, Patrick K. O'Brien wrote:

> On Nov 14, 2007, at 1:53 PM, Chris Mellon wrote:
>
>> On Nov 14, 2007 1:16 PM, Patrick Van Pelt <patrick at laika.com> wrote:
>>> Aha!  I new it would be simple!  Thank you so much, its working  
>>> great now!
>>>
>>> One more simple question, though.  How can I capture the user's  
>>> ENTER command after he has typed a command in the pyShell?  I  
>>> tried doing the usual bind to the TEXT_ENTER event, but it  
>>> doesn't seem to capture that.  I guess because pyShell is using  
>>> it internally?  It looks like the pyShell object has some of its  
>>> own event handler functions, but I'm not sure how to use those as  
>>> they don't seem "bindable."  All I want to do is notify the  
>>> parent window that the user has entered a command (and that it  
>>> will probably need to update something)
>>>
>>
>> Subclass from py.interpreter.Interpreter and override the "push"
>> method, which is whats used to push text into the actual Python
>> interpreter. You'll need to handle multi-line input, see the source
>> for some details.
>>
>> You can then have your pyshell use your custom subclass by passing it
>> as the interpClass parameter to py.shell.Shell.
>
> You could also subscribe to interpreter.push events via the  
> dispatcher.  It should be pretty easy to figure out how by looking  
> at the source for the Dispatcher tab in PyCrust.

This is the relevant bit of code that you could add to some class of  
yours:

     from wx.py import dispatcher

     dispatcher.connect(receiver=self.push, signal='Interpreter.push')

     def push(self, command, more):
         """Receiver for Interpreter.push signal."""
         # Do something with the command string...

Hope that helps,

Pat

-- 
Patrick K. O'Brien
Orbtech    http://www.orbtech.com
Schevo     http://www.schevo.org