CheckBox Error 'NoneType' not subscriptable

[rPhoenix]

Hey Guys,

I'm working on Kali Linux and trying to make a Python Kivy App. I'm new to Kivy and can't seem to figure this out. I have the latest version of Kivy. Any help appreciated.

checkbox_list.py:

    '''
    CheckBoxApp
    ===========
   
    Learning the art of checking those boxes.
    '''
   
   
    from kivy.app import App
    from kivy.lang import Builder
    from kivy.uix.checkbox import CheckBox
    from kivy.uix.boxlayout import BoxLayout
   
    kv = '''
    BoxLayout:
        orientation: 'vertical'
        BoxLayout:
            orientation: 'horizontal'
            Label:
                text: 'Alphabit'
            CheckBox:
                size_hint_y: None
                    height: '48dp'
        BoxLayout:
            orientation: 'horizontal'
            Label:
                text: 'Days of the Week'
            Button:
                text: 'Button 1'
        BoxLayout:
            orientation: 'horizontal'
            Label:
                text: 'Months of the Year'
            Button:
                text: 'Button 1'
        BoxLayout:
            orientation: 'horizontal'
            Label:
                text: '1 to 25'
            Button:
                text: 'Button 1'
        BoxLayout:
            orientation: 'horizontal'
            Label:
                text: '26 to 50'
            Button:
                text: 'Button 1'
        BoxLayout:
            orientation: 'horizontal'
            Label:
                text: '51 to 75'
            Button:
                text: 'Button 1'
        BoxLayout:
            orientation: 'horizontal'
            Label:
                text: '76 to 100'
            Button:
                text: 'Button 1'
        BoxLayout:
            orientation: 'horizontal'
            Label:
                text: '101 to 125'
            Button:
                text: 'Button 1'
        BoxLayout:
            orientation: 'horizontal'
            Label:
                text: '126 to 150'
            Button:
                text: 'Button 1'
        BoxLayout:
            orientation: 'horizontal'
            Label:
                text: '151 to 175'
            Button:
                text: 'Button 1'
        BoxLayout:
            orientation: 'horizontal'
            Label:
                text: '176 to 200'
            Button:
                text: 'Button 1'
    '''
   
   

    class NewProjectApp(App):
        def build(self):
            return Builder.load_string(kv)
   
   
    NewProjectApp().run()


Console Error:

    root@kali:~/Documents/Lab/Python/Kivy# python3 checkbox_list.py
    [INFO   ] [Logger      ] Record log in /root/.kivy/logs/kivy_20-02-28_9.txt
    [INFO   ] [Kivy        ] v1.10.1
    [INFO   ] [Python      ] v3.7.6 (default, Jan 19 2020, 22:34:52)
    [GCC 9.2.1 20200117]
    [INFO   ] [Factory     ] 194 symbols loaded
    [INFO   ] [Image       ] Providers: img_tex, img_dds, img_sdl2, img_pil, img_gif (img_ffpyplayer ignored)
     Traceback (most recent call last):
       File "checkbox_list.py", line 92, in <module>
         NewProjectApp().run()
       File "/usr/lib/python3/dist-packages/kivy/app.py", line 800, in run
         root = self.build()
       File "checkbox_list.py", line 89, in build
         return Builder.load_string(kv)
       File "/usr/lib/python3/dist-packages/kivy/lang/builder.py", line 368, in load_string
         parser = Parser(content=string, filename=fn)
       File "/usr/lib/python3/dist-packages/kivy/lang/parser.py", line 392, in __init__
         self.parse(content)
       File "/usr/lib/python3/dist-packages/kivy/lang/parser.py", line 501, in parse
         objects, remaining_lines = self.parse_level(0, lines)
       File "/usr/lib/python3/dist-packages/kivy/lang/parser.py", line 605, in parse_level
         level + 1, lines[i:], spaces)
       File "/usr/lib/python3/dist-packages/kivy/lang/parser.py", line 605, in parse_level
         level + 1, lines[i:], spaces)
       File "/usr/lib/python3/dist-packages/kivy/lang/parser.py", line 664, in parse_level
         if current_property[:3] == 'on_':
     TypeError: 'NoneType' object is not subscriptable

[Elliot Garbus]

The indentation of height under checkbox is wrong. Start there. 

Sent from my iPhone

On Feb 28, 2020, at 8:51 AM, rPhoenix <rlee3d....@gmail.com> wrote:



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