Aug-08-2022, 12:40 PM
(This post was last modified: Aug-08-2022, 04:49 PM by Yoriz.
Edit Reason: Added error tags
)
I'm new to python, but am reasonably in c I wanted to do this kivy tutorial "https://www.youtube.com/watch?v=l8Imtec4ReQ&t=1154s" and followed it to the letter. I installed kivy with pip and listed the packages and all was well.
Then I wrote four lines of code in main.py and got a black window which signaled that all was ok, but I did get some warnings. Then I added a second file thelab. kv, and tried to add a button. And again, I got a black window, but no button.
I'm working on a computer in Linux mint 21 with pycharm and have the following files:
Main. py:
regards bert
Small update, I did a chmod +u on: '/dev/input/event8' and '/dev/input/event10'
And got no PermissionErrors anymore, but still no button
Then I wrote four lines of code in main.py and got a black window which signaled that all was ok, but I did get some warnings. Then I added a second file thelab. kv, and tried to add a button. And again, I got a black window, but no button.
I'm working on a computer in Linux mint 21 with pycharm and have the following files:
Main. py:
from kivy.app import App from kivy.uix.widget import Widget class MainWidget(Widget): pass class TheLabApp(App): pass TheLabApp().run()The Lab. kv
<MainWidget>: Button: text: "Hello"and the messages are:
Error:home/bert/PycharmProjects/kivi-thelab/venv/bin/python /home/bert/PycharmProjects/kivi-thelab/main.py
[INFO ] [Logger ] Record log in /home/bert/.kivy/logs/kivy_22-08-08_0.txt
[INFO ] [Kivy ] v2.1.0
[INFO ] [Kivy ] Installed at "/home/bert/PycharmProjects/kivi-thelab/venv/lib/python3.9/site-packages/kivy/__init__.py"
[INFO ] [Python ] v3.9.9 (main, Nov 10 2011, 15:00:00)
[GCC 11.3.0]
[INFO ] [Python ] Interpreter at "/home/bert/PycharmProjects/kivi-thelab/venv/bin/python"
[INFO ] [Logger ] Purge log fired. Processing...
[INFO ] [Logger ] Purge finished!
[INFO ] [Factory ] 189 symbols loaded
[INFO ] [Image ] Providers: img_tex, img_dds, img_sdl2 (img_pil, img_ffpyplayer ignored)
--- Logging error ---
Traceback (most recent call last):
File "/home/bert/PycharmProjects/kivi-thelab/venv/lib/python3.9/site-packages/kivy/input/providers/__init__.py", line 41, in <module>
import kivy.input.providers.mtdev
File "/home/bert/PycharmProjects/kivi-thelab/venv/lib/python3.9/site-packages/kivy/input/providers/mtdev.py", line 94, in <module>
from kivy.lib.mtdev import Device, \
File "/home/bert/PycharmProjects/kivi-thelab/venv/lib/python3.9/site-packages/kivy/lib/mtdev.py", line 30, in <module>
libmtdev = cdll.LoadLibrary('libmtdev.so.1')
File "/usr/lib/python3.9/ctypes/__init__.py", line 452, in LoadLibrary
return self._dlltype(name)
File "/usr/lib/python3.9/ctypes/__init__.py", line 374, in __init__
self._handle = _dlopen(self._name, mode)
OSError: libmtdev.so.1: cannot open shared object file: No such file or directory
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/usr/lib/python3.9/logging/__init__.py", line 1083, in emit
msg = self.format(record)
File "/usr/lib/python3.9/logging/__init__.py", line 927, in format
return fmt.format(record)
File "/home/bert/PycharmProjects/kivi-thelab/venv/lib/python3.9/site-packages/kivy/logger.py", line 291, in format
record = copy.deepcopy(record)
File "/usr/lib/python3.9/copy.py", line 172, in deepcopy
y = _reconstruct(x, memo, *rv)
File "/usr/lib/python3.9/copy.py", line 270, in _reconstruct
state = deepcopy(state, memo)
File "/usr/lib/python3.9/copy.py", line 146, in deepcopy
y = copier(x, memo)
File "/usr/lib/python3.9/copy.py", line 230, in _deepcopy_dict
y[deepcopy(key, memo)] = deepcopy(value, memo)
File "/usr/lib/python3.9/copy.py", line 146, in deepcopy
y = copier(x, memo)
File "/usr/lib/python3.9/copy.py", line 210, in _deepcopy_tuple
y = [deepcopy(a, memo) for a in x]
File "/usr/lib/python3.9/copy.py", line 210, in <listcomp>
y = [deepcopy(a, memo) for a in x]
File "/usr/lib/python3.9/copy.py", line 161, in deepcopy
rv = reductor(4)
TypeError: cannot pickle 'traceback' object
Call stack:
File "/home/bert/PycharmProjects/kivi-thelab/main.py", line 13, in <module>
TheLabApp().run()
File "/home/bert/PycharmProjects/kivi-thelab/venv/lib/python3.9/site-packages/kivy/app.py", line 954, in run
self._run_prepare()
File "/home/bert/PycharmProjects/kivi-thelab/venv/lib/python3.9/site-packages/kivy/app.py", line 924, in _run_prepare
root = self.build()
File "/home/bert/PycharmProjects/kivi-thelab/venv/lib/python3.9/site-packages/kivy/app.py", line 597, in build
return Widget()
File "/home/bert/PycharmProjects/kivi-thelab/venv/lib/python3.9/site-packages/kivy/uix/widget.py", line 341, in __init__
EventLoop.ensure_window()
File "/home/bert/PycharmProjects/kivi-thelab/venv/lib/python3.9/site-packages/kivy/base.py", line 136, in ensure_window
import kivy.core.window # NOQA
File "<frozen importlib._bootstrap>", line 1007, in _find_and_load
File "<frozen importlib._bootstrap>", line 986, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 680, in _load_unlocked
File "<frozen importlib._bootstrap_external>", line 850, in exec_module
File "<frozen importlib._bootstrap>", line 228, in _call_with_frames_removed
File "/home/bert/PycharmProjects/kivi-thelab/venv/lib/python3.9/site-packages/kivy/core/window/__init__.py", line 2460, in <module>
Window = core_select_lib('window', window_impl, True)
File "/home/bert/PycharmProjects/kivi-thelab/venv/lib/python3.9/site-packages/kivy/core/__init__.py", line 59, in core_select_lib
mod = importlib.__import__(name='{2}.{0}.{1}'.format(
File "<frozen importlib._bootstrap>", line 1109, in __import__
File "<frozen importlib._bootstrap>", line 1030, in _gcd_import
File "<frozen importlib._bootstrap>", line 1007, in _find_and_load
File "<frozen importlib._bootstrap>", line 986, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 680, in _load_unlocked
File "<frozen importlib._bootstrap_external>", line 850, in exec_module
File "<frozen importlib._bootstrap>", line 228, in _call_with_frames_removed
File "/home/bert/PycharmProjects/kivi-thelab/venv/lib/python3.9/site-packages/kivy/core/window/window_sdl2.py", line 34, in <module>
from kivy.input.provider import MotionEventProvider
File "<frozen importlib._bootstrap>", line 1007, in _find_and_load
File "<frozen importlib._bootstrap>", line 972, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 228, in _call_with_frames_removed
File "<frozen importlib._bootstrap>", line 1007, in _find_and_load
File "<frozen importlib._bootstrap>", line 986, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 680, in _load_unlocked
File "<frozen importlib._bootstrap_external>", line 850, in exec_module
File "<frozen importlib._bootstrap>", line 228, in _call_with_frames_removed
File "/home/bert/PycharmProjects/kivi-thelab/venv/lib/python3.9/site-packages/kivy/input/__init__.py", line 30, in <module>
from kivy.input.postproc import kivy_postproc_modules
File "<frozen importlib._bootstrap>", line 1007, in _find_and_load
File "<frozen importlib._bootstrap>", line 986, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 680, in _load_unlocked
File "<frozen importlib._bootstrap_external>", line 850, in exec_module
File "<frozen importlib._bootstrap>", line 228, in _call_with_frames_removed
File "/home/bert/PycharmProjects/kivi-thelab/venv/lib/python3.9/site-packages/kivy/input/postproc/__init__.py", line 15, in <module>
from kivy.input.postproc.calibration import InputPostprocCalibration
File "<frozen importlib._bootstrap>", line 1007, in _find_and_load
File "<frozen importlib._bootstrap>", line 986, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 680, in _load_unlocked
File "<frozen importlib._bootstrap_external>", line 850, in exec_module
File "<frozen importlib._bootstrap>", line 228, in _call_with_frames_removed
File "/home/bert/PycharmProjects/kivi-thelab/venv/lib/python3.9/site-packages/kivy/input/postproc/calibration.py", line 51, in <module>
from kivy.input import providers
File "<frozen importlib._bootstrap>", line 1058, in _handle_fromlist
File "<frozen importlib._bootstrap>", line 228, in _call_with_frames_removed
File "<frozen importlib._bootstrap>", line 1007, in _find_and_load
File "<frozen importlib._bootstrap>", line 986, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 680, in _load_unlocked
File "<frozen importlib._bootstrap_external>", line 850, in exec_module
File "<frozen importlib._bootstrap>", line 228, in _call_with_frames_removed
File "/home/bert/PycharmProjects/kivi-thelab/venv/lib/python3.9/site-packages/kivy/input/providers/__init__.py", line 44, in <module>
Logger.exception(err)
Message: 'Input: MTDev is not supported by your version of linux'
Arguments: ()
[INFO ] [Window ] Provider: sdl2
[INFO ] [GL ] Using the "OpenGL" graphics system
[INFO ] [GL ] Backend used <sdl2>
[INFO ] [GL ] OpenGL version <b'4.6 (Compatibility Profile) Mesa 21.3.8 (git-813ee839be)'>
[INFO ] [GL ] OpenGL vendor <b'Intel'>
[INFO ] [GL ] OpenGL renderer <b'Mesa Intel(R) UHD Graphics 620 (WHL GT2)'>
[INFO ] [GL ] OpenGL parsed version: 4, 6
[INFO ] [GL ] Shading version <b'4.60'>
[INFO ] [GL ] Texture max size <16384>
[INFO ] [GL ] Texture max units <32>
[INFO ] [Window ] auto add sdl2 input provider
[INFO ] [Window ] virtual keyboard not allowed, single mode, not docked
[INFO ] [ProbeSysfs ] device match: /dev/input/event8
[INFO ] [ProbeSysfs ] Unable to find provider mtdev
[INFO ] [ProbeSysfs ] fallback on hidinput
[INFO ] [HIDInput ] Read event from </dev/input/event8>
[INFO ] [ProbeSysfs ] device match: /dev/input/event10
[INFO ] [ProbeSysfs ] Unable to find provider mtdev
[INFO ] [ProbeSysfs ] fallback on hidinput
[INFO ] [HIDInput ] Read event from </dev/input/event10>
[INFO ] [Base ] Start application main loop
Exception in thread HIDInputMotionEventProvider:
Exception in thread HIDInputMotionEventProviderException in thread HIDInputMotionEventProvider:
Traceback (most recent call last):
Traceback (most recent call last):
File "/usr/lib/python3.9/threading.py", line 973, in _bootstrap_inner
File "/usr/lib/python3.9/threading.py", line 973, in _bootstrap_inner
self.run()
File "/usr/lib/python3.9/threading.py", line 910, in run
self.run()
File "/usr/lib/python3.9/threading.py", line 910, in run
self._target(*self._args, **self._kwargs)
File "/home/bert/PycharmProjects/kivi-thelab/venv/lib/python3.9/site-packages/kivy/input/providers/hidinput.py", line 663, in _thread_run
self._target(*self._args, **self._kwargs)
self._target(*self._args, **self._kwargs) fd = open(input_fn, 'rb')
File "/home/bert/PycharmProjects/kivi-thelab/venv/lib/python3.9/site-packages/kivy/input/providers/hidinput.py", line 663, in _thread_run
PermissionError: [Errno 13] Permission denied: '/dev/input/event8'
fd = open(input_fn, 'rb')
PermissionError: [Errno 13] Permission denied: '/dev/input/event10'
[INFO ] [Base ] Leaving application in progress...
Process finished with exit code 0
and I hope that someone can help me overcome this initial obstacle so that I can go further.regards bert
Small update, I did a chmod +u on: '/dev/input/event8' and '/dev/input/event10'
And got no PermissionErrors anymore, but still no button