old_contents: '''ScreenSponsor:
  Display all the logos of the sponsors.
  '''
  
  from kivy.uix.screenmanager import Screen
  from kivy.lang import Builder
  
  class ScreenSponsor(Screen):
  
      
      Builder.load_string('''
  <ScreenSponsor>
      name: 'ScreenSponsor'
      BoxLayout
          padding: dp(12)
          orientation: 'vertical'
          spacing: dp(4)
          AsyncImage
              source: 'https://conference.pydelhi.org/img/platinum_sponsor.jpg'
              allow_stretch: True
              size_hint: 1, 1
          BoxLayout
              orientation: 'vertical'
              spacing: dp(12)
              Image
                  allow_stretch: True
                  source: ''
              BoxLayout
                  orientation: 'vertical'
                  Widget
                  Image
                      allow_stretch: True
                      source: ''
          BoxLayout
              size_hint_y: None
              height: dp(50)
              PyConButton
                  text: 'Sponsor Us'
                  default: True
                  size_hint_y: None
                  height: dp(40)
                  on_release: webbrowser.open('https://in.pycon.org/2016/sponsorship-prospectus.pdf')
              PyConButton
                  text: 'Contact Us'
                  size_hint_y: None
                  height: dp(40)
                  on_release: webbrowser.open('mailto:sponsorship@in.pycon.org')
  ''')
new_contents: '''ScreenSponsor:
  Display all the logos of the sponsors.
  '''
  
  from kivy.uix.screenmanager import Screen
  from kivy.lang import Builder
  
  class ScreenSponsor(Screen):
  
      
      Builder.load_string('''
  <ScreenSponsor>
      name: 'ScreenSponsor'
      BoxLayout
          padding: dp(12)
          orientation: 'vertical'
          spacing: dp(4)
          AsyncImage
              source: 'https://conference.pydelhi.org/img/platinum_sponsor.jpg'
              allow_stretch: True
              size_hint: 1, 1
          BoxLayout
              orientation: 'vertical'
              spacing: dp(12)
              Image
                  allow_stretch: True
                  source: ''
              BoxLayout
                  orientation: 'vertical'
                  Widget
                  Image
                      allow_stretch: True
                      source: ''
          BoxLayout
              size_hint_y: None
              height: dp(50)
              PyConButton
                  text: 'Sponsor Us'
                  default: True
                  size_hint_y: None
                  height: dp(40)
                  on_release:
                      import webbrowser
                      webbrowser.open('https://in.pycon.org/2016/sponsorship-prospectus.pdf')
              PyConButton
                  text: 'Contact Us'
                  size_hint_y: None
                  height: dp(40)
                  on_release:
                      import webbrowser
                      webbrowser.open('mailto:sponsorship@in.pycon.org')
  ''')
subject: Fix webbrowser error