How To Get Along With Mstringarray?

[ancher]

Get stuck trying to pass MStringArray data to API calls..

Lists does not work, saying:
a 'MStringArray *' is expected, 'list(['qwerty'])' is received

Declaration
sArray = OpenMaya.MStringArray()

does not work either, saying:
'module' object has no attribute 'MStringArray'

Am I dumb and stupid, or what?

[marcinm]

Check documentation for Python API :

No MString and MStringArray classes

We have removed the MString and MStringArray classes from the Maya Python API. Python already has a very robust string implementation which makes ours unnecessary.

[ancher]

QUOTE(marcinm @ 05/16/07, 08:18 PM) [snapback]266201[/snapback]
We have removed the MString and MStringArray classes from the Maya Python API. Python already has a very robust string implementation which makes ours unnecessary.

Ok. How do you expect to provide API calls with MStringArray data, if python lists do not acceppted, as i've mentioned above?..

Maybe python has some other types of data, that can be cast as MStringArray by API?..

[djt0mserv0]

QUOTE(Ancher @ 05/17/07, 06:14 AM) [snapback]266236[/snapback]
Ok. How do you expect to provide API calls with MStringArray data, if python lists do not acceppted, as i've mentioned above?..

Maybe python has some other types of data, that can be cast as MStringArray by API?..

Python plays nice with MString/MStringArray stuff, the following seems to work:

[codebox]import maya.OpenMaya as OpenMaya

meshIt = OpenMaya.MItDag( OpenMaya.MItDag.kBreadthFirst, OpenMaya.MFn.kMesh )
while not meshIt.isDone():
objFn = OpenMaya.MFnDagNode(meshIt.currentItem())
name = objFn.fullPathName()
print name
meshIt.next()[/codebox]

the signature for the fullPathName function is MString fullPathName, so i imagine using strings and lists in python should work for MString and MStringArray.

[roomie]

What about in the circumstance where I have an attribute on my node that is of type kString? It returns as MString when I try and get the inputData out of the block....doesnt seem to be a way to convert it to a python style string when I get it. Any ideas?

tony

[nihilists]

Going to have to bring this post back to life about Python playing nice with MStringArray types.

I am calling the function that was instanced from MFnMesh:
meshFn.createBlindDataType( id0, longNames, shortNames, dataTypes )

Using the type call the following:
id0 = 'int'
longNames, shortNames, and dataTypes are all 'list'

The error is:
# TypeError: in method 'MFnMesh_createBlindDataType', argument 3 of type 'MStringArray' #

The help docs states:
MStatus MFnMesh:: createBlindDataType ( int blindDataId, MStringArray longNames, MStringArray shortNames, MStringArray formatNames)

Maya does not like the list in this instance in replace of MStringArray.. suggestions?

Yes, I know there is no MStringArray class.

[khansaji]

You can just pass a python array.

from maya import OpenMaya as om
names = []
om.MEventMessage.getEventNames(names)
print names