SendToMaya

import bpy
import sys
import tempfile
from telnetlib import Telnet
from time import sleep
import os
bl_info = {
    "name": "Send to Maya",
    "author": "Sven Akelian - BlenderLounge",
    "blender": (2, 7, 0),
    "location": "VIEW3D -> UI panel",
    "description": "Send selected Objects to Maya",
    "warning": "Still in dev.",
    "category": "Import-Export"
}

# In maya you first need to open the port using this command:
#
host = 'localhost'
port = 7002


def export_defaults(file):
    bpy.ops.wm.alembic_export(
        filepath=file,
        # check_existing=0,
        selected=1,
        normals=1,
        uvs=1,
        # vcolors=1,
        global_scale=1,
        )


class OBJECT_OT_sendMaya(bpy.types.Operator):
    bl_idname = 'object.send_to_maya'
    bl_label = 'Send'
    bl_options = {'REGISTER'}

    def invoke(self, context, event):
        context.window_manager.invoke_props_dialog(self)
        return {'RUNNING_MODAL'}

    def execute(self, context):
        # Set temporary file and export
        file = tempfile.NamedTemporaryFile(suffix=".abc",delete=False)
        file.close()
        export_defaults(file.name)

        # TODO: Here find an appropriate/pythonic way to check the state of the ABC File
        checkfileStatus(file.name)

        try:

            c = Telnet(host, port, timeout=3)
            message = "import pymel.core as pm;pm.importFile('" + file.name + "')"
            c.write(message.encode("utf-8"))


        except Exception:
            e = sys.exc_info()[1]
            err = str(e)
            msg = "Failed to communicate with Maya (%(host)s:%(port)s)):\n%(err)s" % locals()
            raise

        else:
            sleep(.1)

        finally:
            try:
                if c is not None:
                    c.close()
            except:
                print("ERROR")

        return {'FINISHED'}


class VIEW3D_PT_sendMaya(bpy.types.Panel):
    bl_idname = "OBJECT_PT_send_to_maya"
    bl_label = "Send to Maya"
    bl_space_type = "VIEW_3D"
    bl_region_type = "UI"

    def draw(self, context):
        self.layout.row().operator('object.send_to_maya')

def checkfileStatus(file):
    """
    Blocking function.
    Hacky way to get the filestatus from Blender's abc save.
    Checking the file size over time, break when there is no more difference...
    """
    while True:
        fileInit = os.stat(file)
        sleep(1)
        fileNew = os.stat(file)

        difference = fileNew.st_size - fileInit.st_size

        if difference == 0:
            break
        else:
            sleep(5)

def register():
    bpy.utils.register_class(OBJECT_OT_sendMaya)
    bpy.utils.register_class(VIEW3D_PT_sendMaya)


def unregister():
    bpy.utils.unregister_class(OBJECT_OT_sendMaya)
    bpy.utils.unregister_class(VIEW3D_PT_sendMaya)