dolang

"""
Simple `ScreenManager` carousel with screen widgets and optionally, a
shader transition.

This `ScreenManager` changes its `Screen` widgets every 2 seconds (note
the `Clock.schedule_interval()` in `CarouselTest1.__init__()`.

Additional transitions can be triggered with the toggle button.
"""

dolang

Find leaks from a apitrace dump trace

1. Trace your program: apitrace trace python main.py
2. Dump the trace: apitrace dump python.2.7.trace > log
3. Check for leaks: python findleak.py log

dolang

"""
https://github.com/kivy/kivy/issues/2120

Issue was created 2014-04-28.  Confirming this has not been fixed yet.
"""
from kivy.logger import Logger
from kivy.app import App
from kivy.lang import Builder
from kivy.uix.boxlayout import BoxLayout
from kivy.uix.button import Button

dolang

SDL2 Dependency Matrix (as of 2018-04-03)

Red Hat Family

Package Name	FRH	F27	F26	EL7	WkF
alsa-lib-devel	x	x	x	x	x
audiofile-devel	x	x	x	x
dbus-devel				x
libX11-devel	x	x	x	x	x

dolang

"""
Kivy ThreadWorker example app.
"""

import kivy
kivy.require('1.10.0')

import threading
import time

dolang

New Default Encoding for .kv Files: Pros / Cons

Note: This would be in addition to a directive like in Python files: coding: ...

UTF-8 Everywhere

• (+) Simple, straight-forward
• (-) Builder.load_file(...) and Builder.load_string(open(...)) would have differing behaviours (Windows, Linux without UTF-8 locale) because default open(...) uses preferred system encoding
• (?) can't say what the impact on mobile devices is (Android/iOS)

dolang

---
# Kivy development installation into a virtualenv from the GitHub master
# repository.  Meant to be run locally for the currently logged in user.
# Ubuntu, Python 3, Cython 0.28.2, HEAD of master branch.
#
#   ~/
#   ├── kivy      (kivy_local_repo)
#   │   └── ...
#   ├── venv      (venv)
#   :   └── ...

dolang

Known Problems

• Travis CI: Some problem with the Inspector can cause the tests # 121 test_widget_multipopup and # 122 test_widget_popup to hang on Travis CI and in VirtualBox VMs. Manual minimise/maximise/restore/resize fixes it. Current workaround in 55200ee.

• Appveyor: MinGW tests fail due to lack of proper OpenGL support. Potential fix: see how

dolang

# -*- coding: utf-8 -*-
from __future__ import absolute_import, unicode_literals

import logging.config


class F(logging.Filter):

    def __init__(self, level):
        super(F, self).__init__(logging.getLevelName(level))

dolang

"""
Kivy App.
"""

import kivy
kivy.require('1.10.0')

from kivy.app import App
from kivy.lang import Builder
from kivy.uix.actionbar import ActionItem