[IPython-dev] ipython1 and synchronous printing of stdout

Laurent Dufrechou laurent.dufrechou at gmail.com
Sun Jul 20 15:56:23 EDT 2008

Hi gael,
I've checked out your branch and done `python setup.py build_ext --inplace`
Launching your app:

laurent at Pep:~/ipython-sync-frontend/IPython$ python
Traceback (most recent call last):
  File "./frontend/wx/wx_frontend.py", line 30, in <module>
    from IPython.frontend.prefilterfrontend import PrefilterFrontEnd
ImportError: No module named frontend.prefilterfrontend

Am I missing something?

laurent at Pep:~/ipython-sync-frontend/IPython/frontend$ ls
asyncfrontendbase.py  cocoa  frontendbase.py  __init__.py
linefrontendbase.py  tests  wx


2008/7/20 Gael Varoquaux <gael.varoquaux at normalesup.org>:
>> I can off course monkey patch the output_trap with my own write method,
>> but this seems a bit ugly. What do the ipython1 developpers think the
>> right way of doing this (and maybe modifying output_trap) is?
> I went ahead experimenting, and created a subclass of output_trap gear
> towards printing via a callback, as can be seen on
> http://bazaar.launchpad.net/~gael-varoquaux/ipython/ipython-sync-frontend/annotate/1041?file_id=sync_output_trap.py-20080720174256-b1fz1ebbxl2ka4t9-1
> I hope this approach is OK. By passing this this output_trap to the
> interpreter I get the desired result, and I sync this approach is
> reusable for any synchronous frontend, such as the one into which
> ipython0 will, hopefully, morph one day.
> Gaël
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