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# helloWorldCmd.py

    """
    To use, make sure that helloWorldCmd.py is in your MAYA_PLUG_IN_PATH (and the
    C++ version is not) then do the following:

    import maya.cmds
    maya.cmds.loadPlugin("helloWorldCmd.py")
    maya.cmds.spHelloWorld()
    """

    import sys
    import maya.OpenMaya as OpenMaya
    import maya.OpenMayaMPx as OpenMayaMPx

    # command
    class HelloWorldCmd(OpenMayaMPx.MPxCommand):
        kPluginCmdName = "spHelloWorld"

        def __init__(self):
            OpenMayaMPx.MPxCommand.__init__(self)

        @staticmethod
        def cmdCreator():
            return OpenMayaMPx.asMPxPtr( HelloWorldCmd() )

        def doIt(self,argList):
            print "Hello World!"

    # Initialize the script plug-in
    def initializePlugin(plugin):
        pluginFn = OpenMayaMPx.MFnPlugin(plugin)
        try:
            pluginFn.registerCommand(
                HelloWorldCmd.kPluginCmdName, HelloWorldCmd.cmdCreator
            )
        except:
            sys.stderr.write(
                "Failed to register command: %s\n" % HelloWorldCmd.kPluginCmdName
            )
            raise

    # Uninitialize the script plug-in
    def uninitializePlugin(plugin):
        pluginFn = OpenMayaMPx.MFnPlugin(plugin)
        try:
            pluginFn.deregisterCommand(HelloWorldCmd.kPluginCmdName)
        except:
            sys.stderr.write(
                "Failed to unregister command: %s\n" % HelloWorldCmd.kPluginCmdName
            )
            raise

    #-
    # ==========================================================================
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