i have been successful making a bridge between two blenders , or 1 cpython 3.2
and blender , or 1 cpython 2.7 and blender or pypy 1.9 and blender . Its part
of my project Ephestos, a new blender gui API and a visual coding enviroment in
pure python
you can see my client and server here
https://github.com/kilon/Ephestos/tree/master/proteas
my server is locked waiting for reply, but that is to be fixed by putting it in
its own process with the multithreading module , its still WIP but via my tests
calling blender python function seems to work ok
the goal is not only to make any blender talk to each other but also for any
language able to use blender python and blender python to use any programming
language and any library there are available for that language.
I am using the XMLRPC protocol, but its basically using sockets
________________________________
From: Kabir Soorya <[email protected]>
To: [email protected]
Sent: Thursday, 5 July 2012, 6:37
Subject: [Bf-python] Using a Modal Operator and Nonblocking Sockets to Control
Blender from an External Python Shell
Hi,
I'm trying to find a good way to control Blender from an external Python shell.
I've spent a lot of time looking at past attempts and see that most haven't
gone anywhere, as Blender's architecture seems to make this difficult. I tried
to just have Python's InteractiveInterpreter class fed from a socket, but
unfortunately Blender locks up completely while listening on the socket -- so
it's not even able to come back into focus when I Alt-Tab to it. That's not
really ideal, and so after reading the docs, it seems like the right way to do
this is to have a modal operator on an event timer repeatedly grab input from a
nonblocking socket, and feed *that* into InteractiveInterpreter. Unfortunately,
the only code I've been able to cobble together for event timers seems to make
blender unresponsive, and cause it to crash horribly. I've attached the code
below, if anyone knows what's going on -- or has a better way to connect
Blender to an external Python, I'd
love to hear your thoughts.
import bpy
>
>
>class ModalOperator(bpy.types.Operator):
> '''Operator which runs its self from a timer.'''
> bl_idname = "wm.modal_operator"
> bl_label = "Vertex Operator"
>
>
> _timer = None
>
>
> def modal(self, context, event):
> print(event.type)
> if event.type == 'ESC':
> print("FINISHED")
> context.window_manager.event_timer_remove(self._timer)
> return {'FINISHED'}
>
> if event.type == 'TIMER':
> self.execute(context)
> return {'RUNNING_MODAL'}
>
>
> def execute(self, context):
> print("EXC")
> bpy.ops.object.mode_set(mode='EDIT')
> context.window_manager.modal_handler_add(self)
> self._timer = context.window_manager.event_timer_add(0.1,
>context.window)
>bpy.utils.register_class(ModalOperator)
>bpy.ops.wm.modal_operator('INVOKE_DEFAULT')
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