topic Re: Python API 2.0 - executeCommand in Maya Programming Forum

Python API 2.0 - executeCommand

Anonymous — Mon, 31 May 2021 12:57:42 GMT

In Python API 2.0 executeCommand was removed.

What way now to perform MEL code In Python API 2.0?

In Python API 1.0 this way is work fine -

import maya.OpenMaya as OpenMayaOld mIntArray = OpenMayaOld.MIntArray() cmd = ("global string $gPlayBackSlider; " "$gPlayBackSlider = $gPlayBackSlider;" "$temp2 = `timeControl -q -ra $gPlayBackSlider`;") OpenMayaOld.MGlobal.executeCommand( cmd, mIntArray, False, False ) print (mIntArray) #[1, 4]

In Python API 2.0 this way is NOT work -

import maya.api.OpenMaya as OpenMaya cmd = ("global string $gPlayBackSlider; " "$gPlayBackSlider = $gPlayBackSlider;" "$temp2 = `timeControl -q -ra $gPlayBackSlider`;") result = OpenMaya.MGlobal.executeCommandStringResult( cmd, False, False ) print (result) # Error: (kFailure): Unexpected Internal Failure # Traceback (most recent call last): # File "<maya console>", line 7, in <module> # RuntimeError: (kFailure): Unexpected Internal Failure #

Re: Python API 2.0 - executeCommand

zewt — Mon, 31 May 2021 19:00:36 GMT

I don't know why this function doesn't work, though since it's an array result, getting a string back would be pretty awkward even if it did. I don't know where MGlobal.executeCommand is. You can just use OpenMaya1 for this, that's what Maya's own Python scripts do.

FWIW, for this particular example I'd just use PyMEL:

import pymel.core as pm start, end = pm.timeControl(pm.mel.globals['gPlayBackSlider'], q=True, ra=True) print(start, end)

Re: Python API 2.0 - executeCommand

Anonymous — Tue, 01 Jun 2021 05:12:51 GMT

Yes, the reason of error is because "executeCommandStringResult" return result in this case as arrray of integers, not string. I think too now.

Yes, now i use just old API for this function, i mean i use "executeCommand" for get highlighted range.

I just want to use only Python API 2.0, i am trying to avoid any Mel, cmds, or pymel methods. I want later rewrite this scripts on C++, if will have time. But C++ in Maya as i saw have "executeCommand".

Thanks.