Python API 2.0 - executeCommand

[Anonymous]

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 #

[Anonymous]

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 #

[zewt]

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)

[zewt]

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)

[Anonymous]

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.

[Anonymous]

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.