 | | | Python and connecting Scripted ops | Python and connecting Scripted ops 2005-05-18 - By Aloys Baillet
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Hi Andy,
It seems to be a dynamic dispatch problem...
You might try Jerry's trick:
XSI sometimes return objects with an incorrectly set (as per PythonWin
standards) multi-dispatch interface.
The way to work around that is to re-wrap the object in a dynamic dispatch.
This allows you to skip the Application.GetValue:
def dispFix( badDispatch ):
import win32com.client.dynamic
# Re-Wraps a bad dispatch into a working one:
return win32com.client.dynamic .Dispatch(badDispatch)
# Let's see if this works:
Application.CreatePrim("Sphere", "MeshSurface", "", "")
Application.ApplyHairOp("sphere", "")
oHair = Application.GetValue
("hair").ActivePrimitive.ConstructionHistory.Find("HairGenOp")
try:
Application.LogMessage(oHair.Parameters['EmitterMeshSubdlevel'].Value)
except:
Application.LogMessage("Incorrect dispatch pointer")
oHair = dispFix(oHair)
Application.LogMessage(oHair.Parameters['EmitterMeshSubdlevel'].Value)
# or, as a single long line:
dispFix(Application.GetValue("hair")
.ActivePrimitive.ConstructionHistory
.Find("HairGenOp")
).Parameters['EmitterMeshSubdlevel'].Value = 1
If that really really annoys you and you don't want to dispFix at all, there
is a way to make sure everything works, but you need to modify a Python file
to always return dynamic dispatches:
Change %PYTHONPATH%\Lib\site-packages\win32com\client\__init__.py
Look for the function called __WrapDispatch
And comment all lines except the last one that begins with "return dynamic.
Dispatch( ... "
Of course it is always a good idea to backup files you are about to modify.
Cheers!
Aloys
On 5/19/05, Andy Buecker <abuecker@(protected)> wrote:
>
> I can't seem to 'connect' my scripted operator using python. I get the
> following error telling me that the class doesn't support the "Connect"
> attribute. The docs tell me this class supoorts this attribute. Anyone know
> how to make this work?
>
> Thanks!
>
> -A
>
> #AttributeError: '<win32com.gen_py.Softimage|XSI Object Model Library
> v1.5.CustomOperator instance at 0x1421616812>' object has no attribute
> 'Connect'
>
>
>
--
Aloys Baillet - Character TD @ Animal Logic
Hi Andy,<br>
<br>
It seems to be a dynamic dispatch problem...<br>
You might try Jerry's trick:<br>
<br>
XSI sometimes return objects with an incorrectly set (as per PythonWin
standards) multi-<span id="st" name="st" class="st0">dispatch</span> interface.
<br>
<br>
The way to work around that is to re-wrap the object in a <span id="st" name=
"st" class="st0">dynamic</span> <span id="st" name="st" class="st0">dispatch<
/span>. This allows you to skip the Application.GetValue:<br>
<br>
def dispFix( badDispatch ):<br>
import win32com.client.<span id="st" name="st"
class="st0">dynamic</span><br>
# Re-Wraps a bad <span id="st" name="st" class=
"st0">dispatch</span> into a working one:<br>
return win32com.client.<span id="st" name="st"
class="st0">dynamic</span>
<div id="mb_6">.<span id="st" name="st" class="st0">Dispatch</span>(badDispatch
)<br><br># Let's see if this works:<br>Application.CreatePrim("Sphere"
, "MeshSurface", "", "")<br>Application
.ApplyHairOp
("sphere", "")<br>oHair = Application.GetValue("hair
").ActivePrimitive.ConstructionHistory.Find("HairGenOp")<br>try:
<br> Application.LogMessage(oHair.Parameters[
'EmitterMeshSubdlevel'].Value)
<br>except:<br> Application.LogMessage("
;Incorrect <span id="st" name="st" class="st0">dispatch</span> pointer")<br
>oHair = dispFix(oHair)<br>Application.LogMessage(oHair.Parameters[
'EmitterMeshSubdlevel'].Value)
<br><br># or, as a single long line:<br><br>dispFix(Application.GetValue("
;hair")<br> .ActivePrimitive
.ConstructionHistory<br> .Find("
;HairGenOp")<br> ).Parameters[
'EmitterMeshSubdlevel'].Value = 1
<br><br>If
that really really annoys you and you don't want to dispFix at all,
there is a way to make sure everything works, but you need to modify a <span id
="st" name="st" class="st0">Python</span> file to always return <span id="st"
name="st" class="st0">dynamic</span> dispatches:<br><br>Change %PYTHONPATH%\Lib
\site-packages\win32com\client\__init__.py
<br><br>Look for the function called __WrapDispatch<br><br>And comment all
lines except the last one that begins with "return <span id="st" name="st"
class="st0">dynamic</span>.<span id="st" name="st" class="st0">Dispatch
</span>( ... "<br><br>Of course it is always a good idea to backup files
you are about to modify.<br>
<br>
<br>
Cheers!<br>
<br>
Aloys<br>
</div>
<br><br><div><span class="gmail_quote">On 5/19/05, <b class="gmail_sendername"
>Andy Buecker</b> <<a href="mailto:abuecker@(protected)">abuecker@(protected)</a>>
wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb
(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div style="font-family: -moz-fixed; font-size: 13px;" lang="x-western">I
can't seem to 'connect' my scripted operator using python. I get the
following error telling me that the class doesn't support the "Connect
"
attribute. The docs tell me this class supoorts this attribute.
Anyone know how to make this work?
<br>
<br>
Thanks!
<br>
<br>
-A
<br>
<br>
#AttributeError: '<win32com.gen_py.Softimage|XSI Object Model
Library v1.5.CustomOperator instance at 0x1421616812>' object has no
attribute 'Connect'
<br>
<br>
<br>
</div>
</blockquote></div><br><br><br>-- <br>Aloys Baillet - Character TD @ Animal
Logic
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