New doctype button vanishes after adding a new module to the desktop


I recently created a new module and added it to the desk top by creating a file containing the following

          from __future__ import unicode_literals
from frappe import _

def get_data():
    return [
            "label": _("Sweeping Jobs"),
            "icon": "octicon octicon-briefcase",
            "items": [
                    "type": "doctype",
                    "name": "Sweeping Job",
                    "label": _("Sweeping Job"),
                    "type": "doctype",
                    "name": "Client",
                    "label": _("Client"),
                     "type": "doctype",
                    "name": "Driver",
                    "label": _("Driver"),

subiquently any new doctypes i create no longer have a new button in the top right and you cannot create a new one by typing in new doctype name.

Does anyone have a solution for this