Sylvain,
I would like to be able to get a maya standalone instance from within the
Maya script editor, run a python function in that maya standalone instance,
sending it arguments, and capture its return value in the maya script
editor.
is there a way to return an instance of maya standalone in the script
editor something like this:
import get_maya_inst as gmi
my_args = 'anything'
maya_inst = gmi.maya_inst()
maya_inst.import_module('my_module_name')
return_val = maya_inst.my_module_name.my_awesome_function(my_args)
maya_inst = None #maya_inst released / quit through garbage collection
print(return_val)
Otherwise,
Is there a way you could post a more generic and step by step demo of your
example on how to achieve the original goals of sReinfrank's question?
On Monday, May 11, 2009 at 10:53:20 AM UTC-7, Sylvain Berger wrote:
>
> I manage to do this... it is a bit complex to explain, so i'll try my best.
>
> 1. Create a command calling mayapy.exe -m <script to run> <arguments>
> 2. Create the script you are calling with mayapy.exe, in this script you
> can grab the arguments sent to the script using sys.argv
> example:
> import sys
> # store the arguments in variables
> argument1 = sys.argv[1]
> argument2 = sys.argv[2]
> etc.
>
> 3. call the mayapy.exe command using subprocess. Here is part of my
> script... Note that I am capturing the stdout and stderr of mayaPy so I can
> diagnose problem more easily... you don't have to capture them.
>
> import subprocess
> cmdAndArgs = 'mayapy.exe -m mayaPy.avol.batchExportInit
> '+objExportedScene+' '+avolObj.NodeName+' '+camExportedScene+'
> '+str(createPreviewRender)
> tempFolder = os.path.dirname(objExportedScene)
> # Create log file
> sdtoutFile = r'%s\stdout.txt' %tempFolder
> stderrFile = r'%s\sterr.txt' %tempFolder
> outptr = file(sdtoutFile, 'w')
> errptr = file(stderrFile, 'w')
> # Call the subprocess using convenience method
> startupinfo = subprocess.STARTUPINFO()
> startupinfo.dwFlags = subprocess.STARTF_USESHOWWINDOW
> retval = subprocess.call(cmdAndArgs, startupinfo=startupinfo, bufsize=0,
> executable=None, stdin=None, stdout=outptr, stderr=errptr)
> # Close log handles
> errptr.close()
> outptr.close()
>
>
> This works fine for me... From maya I am exporting an object, I start a
> maya in background using mayapy.exe, I cleanup the object, save it, etc.
> In my case maya is loked because I am waiting for the stdout of the
> subprocess, but if you send the process and don't wait for it, maya should
> be free.
>
> Hope this helps
>
> On Sat, May 9, 2009 at 9:53 PM, sRheinfrank <[email protected]
> <javascript:>> wrote:
>
>>
>> Hi---I want to be able to capture arguments from a UI in a Maya
>> session and send them to Mayapy to run in the background to keep from
>> locking up the current session while waiting for the process to
>> finish---
>>
>> Ideally, I could access mayapy through the Script Editor (through a
>> system call) and also pass it arguments and the right module to
>> process them and still be able to work in Maya while it's running in
>> the background... I figure using the maya.standalone module would be a
>> vital part of this, what I'm unclear on is just how to get it going
>> purely by running a command from within Maya....
>>
>> Thanks!!
>> -Steve
>>
>>
>>
>
>
> --
> They say, "Evil prevails when good men fail to act." What they ought to
> say is, "Evil prevails."
> Nicolas Cage as Yuri Orlov in Lord of War.
>
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