[Twisted-Python] Re: [Pyobjc-dev] Re: pdb in PyObjC apps?

Ronald Oussoren oussoren at cistron.nl
Wed Aug 20 02:25:02 EDT 2003

On Tuesday, 19 August, 2003, at 16:06, Bob Ippolito wrote:

> On Tuesday, Aug 19, 2003, at 05:45 America/New_York, Michael Hudson 
> wrote:
>> Zachery Bir <zbir at urbanape.com> writes:
>>> Note to self: Don't use pdb and try to catch it through
>>> double-clicking  the app :)
>> :-)
>> It shouldn't be *too* outrageously hard to teach my pyrepl interactive
>> tool how to cooperate with the Cocoa run loop (you need a way to give
>> an fd to Cocoa and say "give me control when there's something to read
>> on this" and I'm sure I saw one of them somewhere) in which case you
>> could have an interactive session running alongside your
>> application... Hmm, where's that can of tuits?
> I've developed a CoreFoundation reactor for Twisted that would 
> facilitate this sort of thing.  It's not mainline yet because I 
> haven't had time to fully test and write enough examples -- it does 
> work, but I'm not currently comfortable putting it in the rest of 
> Twisted yet (especially due to the Pyrex build dependency).
> Here's what you would do (this obviously needs Developer Tools 
> installed):
> Download Pyrex 0.8.2
> Modify Pyrex/Compiler/Nodes.py .. change the block starting on line 
> 160 to this (small fix to allow system includes):
>     for filename in env.include_files:
>       if not (filename.startswith('<') and filename.endswith('>')):
>         filename = '"%s"' % filename
>       code.putln('#include %s' % filename)
> Install Pyrex
> Checkout CVS HEAD of Twisted
> Build and install Twisted (or put twisted into your PYTHONPATH, I have 
> a symlink of ~/src/Twisted/twisted at 
> ~/Library/Python/2.3/site-packages/twisted)
> Go into Twisted/sandbox/etrepum/cfsupport
> python setup.py build_ext -i
> cd TWISTEDPACKAGE/internet
> ln -s TWISTEDCVS/sandbox/etrepum/cfreactor.py .
> ln -s TWISTEDCVS/sandbox/etrepum/cfsupport/cfsupport.so .
> That should work, to test it check out the examples in 
> TWISTEDCVS/sandbox/etrepum/examples/PyObjC (which obviously require 
> PyObjC, you can get that from PackageManager)
> Also note that the cfsupport module is enough to just get 
> notifications on the fd, but I recommend using Twisted for anything 
> that talks sockets anyway.

Why didn't you use PyObjC? Is there functionality in CoreFoundation 
that is not in Cocoa or are there other reasons?


More information about the Twisted-Python mailing list