not working in Python3...

[ckwjdals90]

Hello, Thanks for sharing the awesome project! I am fairly new to Python world and only a week old of kivy stuffs, so if I do not understand things well, please bare with me :P I am trying to learn from your code and create my own dashboard. I first ran it in Python 2.7, it was working very well, then I tried to run it with Python 3.6 (since I am planning to create one with 3.6) it gave me this error:

[INFO ] [Logger ] Record log in /Users/ckwjdals90/.kivy/logs/kivy_17-06-28_46.txt [INFO ] [Kivy ] v1.10.0 [INFO ] [Python ] v3.6.1 (default, Apr 4 2017, 09:40:21) [GCC 4.2.1 Compatible Apple LLVM 8.1.0 (clang-802.0.38)] [INFO ] [Factory ] 194 symbols loaded [INFO ] [Image ] Providers: img_tex, img_imageio, img_dds, img_sdl2, img_pil, img_gif (img_ffpyplayer ignored) [INFO ] [OSC ] using for socket [INFO ] [Window ] Provider: sdl2 [INFO ] [GL ] Using the "OpenGL ES 2" graphics system [INFO ] [GL ] Backend used [INFO ] [GL ] OpenGL version <b'2.1 ATI-1.51.8'> [INFO ] [GL ] OpenGL vendor <b'ATI Technologies Inc.'> [INFO ] [GL ] OpenGL renderer <b'AMD Radeon Pro 460 OpenGL Engine'> [INFO ] [GL ] OpenGL parsed version: 2, 1 [INFO ] [GL ] Shading version <b'1.20'> [INFO ] [GL ] Texture max size <16384> [INFO ] [GL ] Texture max units <16> [INFO ] [Window ] auto add sdl2 input provider [INFO ] [Window ] virtual keyboard not allowed, single mode, not docked [INFO ] [Text ] Provider: sdl2 [WARNING] Bottle module not found. Cannot start webserver. Traceback (most recent call last): File "main.py", line 90, in InfoScreenApp().run() File "/usr/local/lib/python3.6/site-packages/kivy/app.py", line 802, in run root = self.build() File "main.py", line 37, in build self.base = InfoScreen(plugins=plugins) File "/Users/ckwjdals90/project/python/kvtuts/rpi_infoscreen_kv/core/infoscreen.py", line 19, in init super(InfoScreen, self).init(kwargs) File "/usr/local/lib/python3.6/site-packages/kivy/uix/floatlayout.py", line 65, in init super(FloatLayout, self).init(kwargs) File "/usr/local/lib/python3.6/site-packages/kivy/uix/layout.py", line 76, in init super(Layout, self).init(kwargs) File "/usr/local/lib/python3.6/site-packages/kivy/uix/widget.py", line 337, in init super(Widget, self).init(kwargs) File "kivy/_event.pyx", line 254, in kivy._event.EventDispatcher.init (/private/var/folders/5s/l2s9hpz92bn6nr2c5239rvm80000gn/T/pip-build-rkjslunl/kivy/kivy/_event.c:5332) TypeError: object.init() takes no parameters

Could you please help me out?

[elParaguayo]

Yes. Don't use python 3!

It wasn't written with python 3 in mind so I have no idea if it will work.

If you really want to try it then I would disable all screens except the clock and see if that works.

If it does then try enabling other screens one by one and see if they work.

[ckwjdals90]

hmm.. I see

I did try to run the app with everything disabled except for the clock, and still gave me the same error.

Any other suggestions I could try out?

Thank you :D

[elParaguayo]

Is there any reason you have to use python 3?

[ckwjdals90]

Our lead wants us to use Python 3, and I love your work and structure of codes, so I want to learn to use it haha

[elParaguayo]

Well, your lead is right. All new code should be in python 3 unless there's a good reason not to use it.

Unfortunately, I learnt python 2 (as that's what I needed to develop some (legitimate) add-ons for xbmc/kodi).

To be honest, I won't have the time to see if I could get it to run in python 3.

[ckwjdals90]

That is totally understandable.

I will try and see what I can do to make it work in Python 3.

If you have insight where I might want to check out, please let me know.

And again, thank you so much for sharing the awesome project, and sharing your thoughts.

Cheers

[ckwjdals90]

Hello again!

Sorry to bother you again D:

I figured that it was how super() works in python3, so I managed to get it to work!

However, I have another issue when I try to display the next screen (in this case, "clock" again since the only active screen is the "clock")

`[INFO ] [Logger ] Record log in /Users/ckwjdals90/.kivy/logs/kivy_17-07-06_90.txt [INFO ] [Kivy ] v1.10.0 [INFO ] [Python ] v3.6.1 (default, Apr 4 2017, 09:40:21) [GCC 4.2.1 Compatible Apple LLVM 8.1.0 (clang-802.0.38)] [INFO ] [Factory ] 194 symbols loaded [INFO ] [Image ] Providers: img_tex, img_imageio, img_dds, img_sdl2, img_pil, img_gif (img_ffpyplayer ignored) [INFO ] [OSC ] using for socket [INFO ] [Window ] Provider: sdl2 [INFO ] [GL ] Using the "OpenGL ES 2" graphics system [INFO ] [GL ] Backend used [INFO ] [GL ] OpenGL version <b'2.1 ATI-1.51.8'> [INFO ] [GL ] OpenGL vendor <b'ATI Technologies Inc.'> [INFO ] [GL ] OpenGL renderer <b'AMD Radeon Pro 460 OpenGL Engine'> [INFO ] [GL ] OpenGL parsed version: 2, 1 [INFO ] [GL ] Shading version <b'1.20'> [INFO ] [GL ] Texture max size <16384> [INFO ] [GL ] Texture max units <16> [INFO ] [Window ] auto add sdl2 input provider [INFO ] [Window ] virtual keyboard not allowed, single mode, not docked [INFO ] [Text ] Provider: sdl2 [WARNING] Bottle module not found. Cannot start webserver. [INFO ] [Screen ] clock loaded. [INFO ] [Base ] Start application main loop [INFO ] [GL ] NPOT texture support is available [INFO ] [Base ] Leaving application in progress... Traceback (most recent call last): File "main.py", line 74, in InfoScreenApp().run() File "/usr/local/lib/python3.6/site-packages/kivy/app.py", line 828, in run runTouchApp() File "/usr/local/lib/python3.6/site-packages/kivy/base.py", line 504, in runTouchApp EventLoop.window.mainloop() File "/usr/local/lib/python3.6/site-packages/kivy/core/window/window_sdl2.py", line 663, in mainloop self._mainloop() File "/usr/local/lib/python3.6/site-packages/kivy/core/window/window_sdl2.py", line 405, in _mainloop EventLoop.idle() File "/usr/local/lib/python3.6/site-packages/kivy/base.py", line 342, in idle self.dispatch_input() File "/usr/local/lib/python3.6/site-packages/kivy/base.py", line 327, in dispatch_input post_dispatch_input(*pop(0)) File "/usr/local/lib/python3.6/site-packages/kivy/base.py", line 233, in post_dispatch_input listener.dispatch('on_motion', etype, me) File "kivy/_event.pyx", line 718, in kivy._event.EventDispatcher.dispatch (/private/var/folders/5s/l2s9hpz92bn6nr2c5239rvm80000gn/T/pip-build-rkjslunl/kivy/kivy/_event.c:8191) File "/usr/local/lib/python3.6/site-packages/kivy/core/window/init.py", line 1188, in on_motion self.dispatch('on_touch_down', me) File "kivy/_event.pyx", line 718, in kivy._event.EventDispatcher.dispatch (/private/var/folders/5s/l2s9hpz92bn6nr2c5239rvm80000gn/T/pip-build-rkjslunl/kivy/kivy/_event.c:8191) File "/usr/local/lib/python3.6/site-packages/kivy/core/window/init.py", line 1204, in on_touch_down if w.dispatch('on_touch_down', touch): File "kivy/_event.pyx", line 718, in kivy._event.EventDispatcher.dispatch (/private/var/folders/5s/l2s9hpz92bn6nr2c5239rvm80000gn/T/pip-build-rkjslunl/kivy/kivy/_event.c:8191) File "/usr/local/lib/python3.6/site-packages/kivy/uix/widget.py", line 457, in on_touch_down if child.dispatch('on_touch_down', touch): File "kivy/_event.pyx", line 718, in kivy._event.EventDispatcher.dispatch (/private/var/folders/5s/l2s9hpz92bn6nr2c5239rvm80000gn/T/pip-build-rkjslunl/kivy/kivy/_event.c:8191) File "/usr/local/lib/python3.6/site-packages/kivy/uix/behaviors/button.py", line 151, in on_touch_down self.dispatch('on_press') File "kivy/_event.pyx", line 714, in kivy._event.EventDispatcher.dispatch (/private/var/folders/5s/l2s9hpz92bn6nr2c5239rvm80000gn/T/pip-build-rkjslunl/kivy/kivy/_event.c:8146) File "kivy/_event.pyx", line 1225, in kivy._event.EventObservers.dispatch (/private/var/folders/5s/l2s9hpz92bn6nr2c5239rvm80000gn/T/pip-build-rkjslunl/kivy/kivy/_event.c:14035) File "kivy/_event.pyx", line 1109, in kivy._event.EventObservers._dispatch (/private/var/folders/5s/l2s9hpz92bn6nr2c5239rvm80000gn/T/pip-build-rkjslunl/kivy/kivy/_event.c:12816) File "/usr/local/lib/python3.6/site-packages/kivy/lang/builder.py", line 64, in custom_callback exec(kvlang.co_value, idmap) File "/Users/ckwjdals90/project/python/kvtuts/testbench_kv/dashboard_kv/base.kv", line 16, in on_press: root.next_screen() File "/Users/ckwjdals90/project/python/kvtuts/testbench_kv/dashboard_kv/core/infoscreen.py", line 192, in next_screen self.scrmgr.current = self.availablescreens[self.index] File "kivy/weakproxy.pyx", line 33, in kivy.weakproxy.WeakProxy.setattr (/private/var/folders/5s/l2s9hpz92bn6nr2c5239rvm80000gn/T/pip-build-rkjslunl/kivy/kivy/weakproxy.c:1471) File "kivy/properties.pyx", line 478, in kivy.properties.Property.set (/private/var/folders/5s/l2s9hpz92bn6nr2c5239rvm80000gn/T/pip-build-rkjslunl/kivy/kivy/properties.c:5572) File "kivy/properties.pyx", line 516, in kivy.properties.Property.set (/private/var/folders/5s/l2s9hpz92bn6nr2c5239rvm80000gn/T/pip-build-rkjslunl/kivy/kivy/properties.c:6405) File "kivy/properties.pyx", line 571, in kivy.properties.Property.dispatch (/private/var/folders/5s/l2s9hpz92bn6nr2c5239rvm80000gn/T/pip-build-rkjslunl/kivy/kivy/properties.c:7105) File "kivy/_event.pyx", line 1225, in kivy._event.EventObservers.dispatch (/private/var/folders/5s/l2s9hpz92bn6nr2c5239rvm80000gn/T/pip-build-rkjslunl/kivy/kivy/_event.c:14035) File "kivy/_event.pyx", line 1131, in kivy._event.EventObservers._dispatch (/private/var/folders/5s/l2s9hpz92bn6nr2c5239rvm80000gn/T/pip-build-rkjslunl/kivy/kivy/_event.c:13193) File "/usr/local/lib/python3.6/site-packages/kivy/uix/screenmanager.py", line 1037, in on_current screen = self.get_screen(value) File "/usr/local/lib/python3.6/site-packages/kivy/uix/screenmanager.py", line 1063, in get_screen raise ScreenManagerException('No Screen with name "%s".' % name) kivy.uix.screenmanager.ScreenManagerException: No Screen with name "clock".

shell returned 1`

it is super weird because I see the clock screen working and displayed, but as soon as I click on the hidden button, it throws this error message.

Any idea why it is breaking??

[karrika]

I found out that if you add an extra class to all screens like:

class BlackHole(object):
    def __init__(self, **kw):
        super(BlackHole, self).__init__()

class FinlandArrivals(BoxLayout, BlackHole):

Then the stuff works with python3. As a lot of my pull requests are still hanging I have not yet made a pull request that would make this work for python3.

[elParaguayo]

Sorry everyone! I haven't looked at this project in a lot for time and I haven't been writing stuff for the pi either.

Karrika, great that you've got it working on python 3.

I don't have time to test pull requests but I am happy to merge. Let me know if you want to update them for python3 before I merge.

I should also update to say that this project is unmaintained!

Thanks for your interest in this project.

[karrika]

Thanks for returning on this. I could spend some time to test the pull requests and create a python3 pull as well. I am also running this on an Ubuntu 19.04 workstation. And plan to try it on Windows as well.

[elParaguayo]

Ok. Let me merge them as they are and, if you do update for python 3, just submit a new pull request.

[karrika]

Sounds great!