gistfile1.txt

import kivy

from kivy.app import App
from kivy.uix.floatlayout import FloatLayout
from kivy.properties import ObjectProperty, ListProperty
from kivy.uix.popup import Popup
from kivy.lang import Builder
import os

Builder.load_string("""

<MainScreen>:
    BoxLayout:
        orientation: 'vertical'
        BoxLayout:
            size_hint_y: None
            height: 30

        Button:
            text: 'Choose Source'
            on_release: root.load_source()

        Label:
            id: _selection
            text: "name of chosen folder should appear here"
            size_hint_y: .5
            canvas.before:
                Color:
                    rgb: .5,.5,.4
                Rectangle:
                    pos: self.pos
                    size: self.size

        Button:
            text: 'GO'
            on_release: root.GetFolderName()

<LoadDialog>:
    BoxLayout:
        size: root.size
        pos: root.pos
        orientation: "vertical"

        FileChooserListView:
            path: '/volumes'
            dirselect: True
            id: filechooser
            filter: ['*.mov']
            multiselect: True

        BoxLayout:
            size_hint_y: None
            height: 30

            Button
                text: "Cancel"
                on_release: root.close(None)

            Button
                text: "Select"
                on_release: root.close(filechooser.selection)
""")


class LoadDialog(FloatLayout):

    selection = None
    ''' Holds a list of the file items return by the file chooser, None
     otherwise.
     '''

    cancel = ObjectProperty(None)

    def close(self, selection):
        """ Close the dialog. The selected is boolean indicating acceptance or
        cancellation. """
        if selection is not None:
            self.selection = selection
            print "Select {0}".format(self.selection)
        self.cancel()


class MainScreen(FloatLayout):
    def dismiss_popup(self):
        self._popup.dismiss()
        if self.content.selection is not None:
            self.ids._selection.text = str(self.content.selection)

    def load_source(self):
        self.content = LoadDialog(load=self.load, cancel=self.dismiss_popup)
        self._popup = Popup(title="Select Source Folder",
                            content=self.content,
                            size_hint=(0.9, 0.9))
        self._popup.open()

    def load(self, path, filename):
        with open(os.path.join(path, filename[0])) as stream:
            self.text_input.text = stream.read()
        self.dismiss_popup()

################## I'd like to do a few python things with this but Can't figure out how to get variables from the dialog in Kivy to bind with this#########################
    def GetFolderName(self, *args):
        y = "name of chosen folder"    
        print y 




class FootageImport(App):
    def build(self):
        return MainScreen()

if __name__ == "__main__":
    FootageImport().run()