Qt for Python Development Notes

2023

21. September 2023

• General
  • Python 3.12.0rc3 is out, final release scheduled for October 2
• Infra & Releases
  • 6.6 branched
  • 6.5.3 preparations
• Bugs & Features
  • Fixed PYSIDE-2465 (3.11.5 test fail)
  • Work on PYSIDE-2462 (smart pointer features)
  • Refactored options parsing of shiboken
  • Fixed clang-tidy static analysis issues
  • Android permissions API: Adapt more C++ examples
  • Couple more cleanups and additions to pyside6-android-deploy
  • More manual testing of pyside6-android-deploy. Need to write more integration (mocks) for Android deployment.
  • Final cleanup and resolving tests for python-for-android Qt for Python patch
  • PYSIDE-2468 -requestPermission() on macOS. Tricky scenario similar to PYSIDE-2419
  • asyncio's requirement to use ThreadPoolExecutor keeps screwing us over, but resolution close

14. September 2023

• Infra & Releases
  • Testing and fixing qtpip for commercial wheels
• Bugs & Features
  • PYSIDE-2460 Work on some OpenGL issues, updated hellogl2 example
  • PYSIDE-2461 Build system for cross build fixes
  • PYSIDE-2463 Fixed some type hints
  • Android auto sdk and nkd download merged.
  • Requestpermission API and all android changes set for 6.6 merged. Will write tests in the meantime and do some manual testing with deploying apps.
  • patchelf removal for Qfp binaries merged.

07. September 2023

• General
  • Majority of the team on holiday
• Infra & Releases
  • Preparing 6.2.10, 6.5.3, 6.6.0
• Bugs & Features
  • PYSIDE-2393 pytest problem with feature is fixed
  • PYSIDE-2428 feature problem caused long search, has to be fixed in matplotlib
  • Fixed PYSIDE-2444 QState.assignProperty - incorrect type annotation
  • Fixed PYSIDE-2454 Default argument is not used for containers
  • Added some number protocol slots PYSIDE-2446
  • Research on submodules PYSIDE-2447
  • qtpip for commercial wheels polishing touches

31. August 2023

• General
  • Python 3.11.5 released
  • PyCon Spain talk was accepted - Adrian giving a talk for the new Async story, in October.
  • People on leave in September
  • FF on Qt for Python overview
• Infra & Releases
  • Planning 6.6 for the last days of September
    • Maintenance Tool update for qt for python
    • Features until 12.09
      • Feature issues + multiple inheritance
      • Async story needs some testing
      • Android patches (new modules, plugins, permissions, etc)
      • qtpip for commercial wheels
      • new QtCreator templates?
  • 6.2.10 Commercial LTS and 6.5.3
• Bugs & Features
  • Lazy imports still in progress, might be available for 6.7
  • QmlSingleton crash was fixed
  • JIRA was cleaned a bit, many invalid issues
  • Signal signatures were adjusted
  • PYSIDE-748 additional parameter metamethod (old issue)
  • QDataStream read/write data accepting bytes too
  • New CMake Qt API has lots of features for qml, resources, etc which might not be too compatible with Qt for Python.
  • PYSIDE-2429 macOS deployment min version fixed
  • patchelf removal is ready to merge (motivated by android research)
  • android: permission API, need some extra testing. Soon ready for review.
  • QIODevice buffer object issue was fixed, and is waiting for review (motivated by the async story)
  • qtpip development continues.

24. August 2023

• General
  • New board on JIRA to reflect our work clearly https://bugreports.qt.io/secure/RapidBoard.jspa?rapidView=262&view=planning.nodetail&issueLimit=100
  • Qt Meetups are starting to popup in Berlin and other countries! we might join some of them.
  • Discussions around improving the Qt Creator experience and UI creation in general.
  • There has been some motivation from Qt/C++ to use more CMake in projects (like for resources), which is negatively affecting the Python projects, due to the lack of CMake in the Python projects.
• Infra & Releases
  • Commercial LTS 5.15.15 to be released soon.
  • 6.5.3 scheduled for the first week of September
• Bugs & Features
  • QIODevice::read(char*, qint64) functions are removed, but they are useful for the asyncio story. Discussion on if it's worth exposing them.
  • More changes related to QtAsyncIO are ready for review.
  • PYSIDE-2417 overflow issue was fixed
  • [ot] i18n in the Qt framework
  • PYSIDE-2418 connection issue with python overloads
  • 6.6 documentation has some issues due to the QtGraph new module
  • PYSIDE-2423 connecting signals to python callable doesn't properly work - trying to find a proper solution
  • PYSIDE-2424 Installing shiboken in a non-standard way discussion - it might not be properly fixed.
  • Next Wednesday 10am: session about Shiboken + QtScrypt status
  • PYSIDE-2419 locale issue on macOS due to the Info.plist that python includes that overrides the QLocale settings. A bug report was filed upstream, and a workaround is suggested.
  • PYSIDE-2421 webengine issue was discussed, it's an Qt/C++ chromium issue.
  • CMake FindPython patches are still being worked out, the wrong interpreter is being found.
  • patchelf removal is causing some issues with cross compilation.
  • qtpip works continues.

17. August 2023

• Bugs & Features
  • Investigating on PyPySide MI segfault postponed but on To-Do list PYSIDE-1991
  • PYSIDE-2404 More Progress in Lazy Initialization
    • the optional __getattr__ in module objects was successfully implemented (but is seldom used)
    • lazy init of Enums is probably no more needed, covered by the import scheme below
    • most common cases like "from PySide6.QtWidgets import QLabel" supported by another __import__ override
    • Keep your fingers crossed, testing starts today
  • PYSIDE-2419 QLocale::language() returns wrong on macOS.
    • Caused by QLocale infrastructure which looks at Info.plist inside the Python interpreter macOS bundle.
    • Working on a hack fix after consulting Tor Arne and Eddy.
  • Pacthelf removal - cross compilation breaks. Working on a fix.
  • PYSIDE-2421 - QWebEngineView.print() - rerouted to Qt
    • But, might requires an ownership fix in Shiboken once QTBUG-116052 is resolved
  • Research - use the .debug files provided by the Qt installer to debug from VSCode.
    • Saves time from not building Qt everytime
    • Still ongoing
  • QtAsyncio: Implementation of asyncio.Server (one open question remains - asyncio API and Qt API don't always match as cleanly as desirable).

10. August 2023

• General
• Infra & Releases
• Bugs & Features
  • Patchelf removal only partially possible because of using patchelf on prebuilt Qt binaries.
    • For Qfp binaries patchelf removal under review. MacOS issue being fixed. This is needed for Android.
  • Shiboken module cmake installation bug fixed.
  • Progressing with Android C++ to Python callback, now that Qfp binaries could be loaded on startup.
  • Further investigating on PyPySide MI segfault PYSIDE-1991
  • PYSIDE-2404 Progress in Lazy Initialization
    • the new dual registration is done and builds the base for concrete lazy init
    • lazy init of Enums postponed because
    • an undocumented optional __getattr__ in module objects makes it much easier to lazy-load whole classes, first.

3. August 2023

• General
  • New reports board
  • QtCreator support
  • Integration cycle on gerrit overview
• Infra & Releases
  • CI down next Monday for a few hours
  • First tests on linux arm64
  • Preparing 5.15.15 Commercial LTS
  • qtpip first trials on the CI
• Bugs & Features
  • Async research continues, new things are being discovered while is being developed
    • Implementing a few new things for improving the support
    • Initial patch got merged, but a few others are in the making
  • Team contributing to QtAcademy
  • SQL queries issues, inconsistencies in the API were fixed
  • Build with ninja had some problems regarding mixing stdout and stderr
  • Testing initial support for rvalues
  • 2272 fixing signatures for some qmlRegister* functions
  • Examples: new mediaplayer was fully ported
  • Example gallery scans now a doc directory for images
  • Some other multimedia examples are pending for review
  • Team contributing to Qt translations
  • Adjusting the deployment tool, and fixing issues with pyenv, and upgrading nuitka
  • CMake: adjusting the files to use the new API for finding python, reducing our cmake files
    • Considering also the removal of patchelf, and follow the cmake approach
  • Lazy initialization of enums is showing a good improvement on the performance

27. July 2023

• General
  • Shyam wrote trip report to Europython
  • Some vacations starting soon for some team members
  • Got some cool t-shirts (internal only so far) - Is there interest for merch?
• Infra & Releases
  • 6.5.2 released
  • Some LTS releases soon as well
  • Issues on the CI (RHEL8.6) and python interpreter.
  • Formalization of release besides wheels on PyPI and account.qt.io
  • Soon to enable CI on qtpip
• Bugs & Features
  • [ext] designer issue, translations
  • PYSIDE-2402 QtHttpServer module was missing on Windows
  • QSql methods were un-deprecated (module seems to need more love)
  • Port QtGraph example
  • AsyncIO module: there is a second change in preparation
  • Finally the android issue we had was solved. It seems that patchelf was breaking our binaries, and now we are using a cmake approach instead.
  • Enable unity builds for android
  • Nuitka will be pinned to a recent version
  • PYSIDE-2404 lazy loader research
• Interesting projects we checked
  • https://github.com/larryhastings/appeal
  • Stable Diffusion
  • https://docs.hpyproject.org/en/latest/quickstart.html
  • https://github.com/rui314/mold

20. July 2023

• General
  • Two team members @ Europython 2023
• Infra & Releases
• Bugs & Features
  • Implementing transports and protocols of asyncio API
  • Lazy importer still under development. Ongoings:
    • necessary to register all types without creating them
    • turning all PyTypeObject into PyTypeObject valued functions
    • quite hard because deeply buried in the generated code

13. July 2023

• General
  • CI is not behaving, so be cautious
  • 3.12 beta 4 was released
  • Next week some people are going to Europython
• Infra & Releases
  • 6.5.2 still in progress, waiting to have the RC wheels
• Bugs & Features
  • Qt Akademy to prepare a Qt for Python course
  • Examples: we might adapt our gallery to https://bugreports.qt.io/browse/QTBUG-115174
  • Android: callback issue from C++ to Python, some ideas are around, but the problem persists.
    • Might be related to the usage of patchelf.
  • Research on Lazy loader continues
    • Some ideas are behaving well at the moment, but still being tested.
    • We might need to discover some classes that we cannot initialize lazily (manual code injection, need init before usage)
  • We need some reviews for the eventloop patch (asyncio)
  • An enum class with an issue for stubs.
  • qtpip work continues
  • Some good-first-issue are planned for the project, so more contributors can join us!

6. July 2023

• General
  • PySide 6.6 will support Python 3.8+
  • Python 3.12 support will be back-ported to 6.5 only, and not 6.2
• Infra & Releases
  • 6.2.9 commercial lts was released yesterday.
  • 6.5.2 RC wheels to be tested.
  • 5.15 open commercial lts tags are in the pyside/pyside-setup repo.
  • qtpip configuration file being improved and updated
  • ARM CI host configuration continues
• Bugs & Features
  • Removal of old enums was finished
  • Starting to work with lazy loaders for enums
  • First iteration of the asyncio support for the qt eventloop, tests are being prepared.
  • PYSIDE-2370 cross compilation issue, might be related to host python, provided some options to try.
  • Android issue, we cannot get C++ callbacks to Python. Might be related to a python version incompatibility.
  • Preparing a contribution back to python-to-android
  • Rewriting some enum code
  • Add mediaplayer demo in qtdoc for python (some issues with qml)
  • Add document viewer qtdoc example
  • PYSIDE-2381 QSettings issue
  • pyside6-lupdate issues related to encoding.
  • qtpip works continues

29. June 2023

• General
  • Next maintenance break in August.
• Infra & Releases
  • 6.5.2 postponed until next week
  • 6.2.9 Commercial LTS soon to be released (a new qt build)
  • 5.15.15 LTS in the next weeks
  • ARM CI host still in progress
  • Brainstorming some additional matrix testing infra for Python versions
  • Tags for OSS and new LTS public releases (IFW ticket)
• Bugs & Features
  • Research on scripting continues
  • Designer related features/ QtCreator
  • Memory leak related to REG is solved
  • New icon theme for examples coming
  • Some qdoc examples might be enabled for Python
  • Enum removal is still generating detail discussions
    • Two implementation versions are suggested.
    • The old ones were written in C++ so the startup time is a lot slower
    • Lazy generator is helping a A LOT
  • Android dev build - unity had some complications
  • Async event loop work, last issues were addressed.
    • still some network io features are missing
  • [Research] PySide components for QtDS needs to follow QtDS release cycle rather than Qt.

21. June 2023

• General
  • PyPI limit increase for PySide6-Addons
  • PySide 6.6 might have support for Python 3.8+ (due to Python 3.7 EOL in a week)
  • Python 3.12b3 is out - test!
  • Qt Contributor Summit
    • General session + maybe another one for specific topics.
• Infra & Releases
  • 6.2.9 is ready, but waiting for Qt/c++ release
  • 6.5.2 release date is next week.
  • Tags for OSS and new LTS public releases
• Bugs & Features
  • Android research: extra functionality is there, and working on bluetooth/permission integration with a device (example)
  • PYSIDE-2364 Invalid syntax on a pyi file
  • Continue with the old enum removal.
    • Maybe delayed initialization to improve startup time.
  • AsyncIO eventloop work continues
  • Research for scripting continues
  • 6.6 adaptations
  • Fix Enum issue with clang with invalid hex

15. June 2023

• General
  • Going to EuroPython
  • Participation in Qt Academy
• Infra & Releases
  • 6.2.9 LTS to be released
  • NFS issues in the CI, being worked on.
  • ARM host on CI experiencing some issues.
    • Some preliminary wheels were generated in order to test.
    • Might help the Android story, but this needs to be confirmed.
• Bugs & Features
  • Async research revisited
    • Testing eventloop wrapping
  • Memory leak issue still needs to be fixed (hopefully for 6.5.2)
  • Examples in Qt revamp
  • Translations and fixes for 6.6
  • Discussion about Enums implementation
  • Scripting on C++ research continues
  • PYSIDE-1735 removing old enums continues
  • Android improvements in review
    • Adding more modules
  • QVariant enum change (temporary patch until Qt7)
  • shiboken_generator research to make it publicly available (libclang dependency)

8. June 2023

• General
  • Python 3.11.4 released, 3.12.0beta2
  • PySide6-addons reaching the 10G limit on PyPI
• Infra & Releases
  • 6.5.1.1 released due to a regression (introduced by a mem leak fix)
  • Maintenance Tool > wheels
    • Special case for M2M protocols to be tested
  • CI on arm64 continues (Linux and Windows)
• Bugs & Features
  • Fixed some type-hint related issues PYSIDE-2357/PYSIDE-2331/PYSIDE-2340
  • Scripting research
  • Qt pip tool has updated the configuration file and wheels to continue the work on the new tool
  • QVariant PyEnum issue -> solution for review
  • Android work continues: improving the dependency detection
  • PYSIDE-2335 unraisable is finally checked in (the current solution works, it could be improved but low prio -> xml definitions)
  • PYSIDE-2354 type error due to the usage of Generic (related to 939) - related to cpython issue
  • PYSIDE-1735 old enums removal started
  • Example tunings
  • Bug fixing week

1. Juni 2023

• General
  • Europython - call for first time speakers (open to anyone)
  • Waiting until API review to move dev to 6.6
  • New Epic/User Stories policy
  • Participating into Qt Academy
• Infra & Releases
  • 6.5.1 released, a leak fix is causing issues with signal connections.
    • Initially we thought it was purely functools.partial but there are other cases that are not working.
    • Testing alternative solutions, otherwise we revert
    • In any case a 6.5.1.1 will be out soon
  • Need to test the new conf file for the commercial wheel install mechanism
  • 5.15 needs to skip libclang16
  • Testing maintenance tool with a license without Qt for Automation (for wheel check)
  • JIRA release versions are pending.
• Bugs & Features
  • (External) Designer fonts issues
  • PYSIDE-2347 metaobject tool missing types
  • Scxml events missing connections.
  • Scripting research (check report)
  • Leak research continue
  • Issue with new example state machine to be solved (event handling)
  • PYSIDE-1930 PYSIDE-2239 QVariant Enum issue, the fix is out, but we need some tests.
  • Finish the problem with unraisable exceptions
    • Discussion on special cases with a run function
    • Blocking functions are still an issue, because we cannot break
  • PYSIDE-2354 typing.Generic issue with inheritance in progress
  • PyTest research continues

25. Mai 2023

• General
  • QtWS - One talk accepted
  • Europython - One talk accepted
• Infra & Releases
  • 6.5.1 one issue was found, so release will be available once we merge the fix.
  • 5.15.14 to be release soon.
  • CI arm64 experiments continue
  • Asking about M2M wheels on the maintenance tool, for 6.6
  • Solving LTS issues of missing tags on public repo, might take some time.
• Bugs & Features
  • Evaluating shiboken6_generator to be published on PyPi
  • Few small fixes around the project (release preparation, new features, small bugs, doc issues)
  • QtScrypt experimental work continues
  • Permission API added (motivated by the android support)
  • Improvements for the android deployment.
  • Trying to fix an issue of getting Enums to Ints
  • Delayed exceptions work continues, trying to fix some corner cases still.
  • Starting to explore PEP 658
  • Research on PyTest compatibility
  • [Designer] Fixing some issues, and warnings

18. Mai 2023

• Infra & Releases
  • 6.5.1 Preparations
  • 5.15.14 Preparations
• Bugs & Features
  • Fixed PYSIDE-2325 typesystem incomplete
  • Fixed PYSIDE-2328 Segmentation fault/access violation when connecting signal of temporary object
  • Fixed PYSIDE-2329 Signal connections with init kwargs
  • Reverted temporarily the delayed exception patch, in order to not block the 6.5.1 release. This should be discussed at the next meeting
    • Fixed PYSIDE-2310
    • Fixed PYSIDE-2321

11. Mai 2023

• General
  • Python Users Berlin meetup talk today
  • Europython, QtWS
  • Qt FF 02.06
  • Android team «ketchup»
  • Example revamp update
    • Quick examples needs to be ported to loadFromModule (Quick3D, QuickLocation, missing)
• Infra & Releases
  • 6.5.1 to be release around 15.05 -> shifted to next week.
    • https://bugreports.qt.io/browse/PYSIDE-2310 regression
    • https://bugreports.qt.io/browse/PYSIDE-2299 memory leak
  • 5.15.14 to be release around 16.05
• Bugs & Features
  • Fixing regressions issue related to threads - delayed exceptions
  • https://bugreports.qt.io/browse/PYSIDE-2321 event handlers issues
  • https://bugreports.qt.io/browse/PYSIDE-1951 virtual method override - still in progress
  • https://bugreports.qt.io/browse/PYSIDE-2230 3.12 support
  • nogil research continues - mutex might slow down things, but doing a proper division of the code could help.
  • QML example tutorials - one review pending
  • 2313 longtype issue with numpy
  • examples revamping - loadFromModule
  • Icon library -> icon theme soon available on a new module.
  • PYSIDE-2316 sharedpointer template issues
  • Shiboken refactoring
  • Finally the memory leak is fixed
  • Enhancing android story, detection of modules, finding dependencies, got ideas from the current qt/c++ tool.
  • Build infrastructure, setup.py install has been deprecated since 3.11 - looking into a new build infrastructure.
  • Internal technical talks
    • Shiboken generating bindings
    • Shiboken for documentation generation
    • type hints generation
    • QML integration via decorators

4. Mai 2023

• General
  • Europython talk by Shyam still under consideration
  • Qt for Android catch up meeting scheduled for 09/05/2023
  • Discussion with kivy developers done on discord. They seem to be onboard with the Qt support.
• Infra & Releases
• Bugs & Features
  • Android Deployment Enhancements - Bringing pyside6-android-deploy at the level of androiddeployqt - Ongoing
  • python-for-android PR Enhancements - Ongoing
  • PYSIDE-1951 super().__lt__ global solution ongoing
  • PYSIDE-2206 QML examples/tutorials revamping
  • PYSIDE-2221 Python runs NoGil version of mandelbrot.py 7.7 times faster on a 10-code M1 machine
  • PYSIDE-2288 Fixed Clang 16 support for 6.6/6.5.
  • PYSIDE-2310 Crashing without error reporting in Qt-based threads, debugging
  • PYSIDE-2299 Ongoing, current attempt fixes most tests but leaves some SegFaults, might be a dead-end.

27. April 2023

• General
  • Planning collaboration with other projects like Kivy, towards a better mobile support.
  • QtWS talks submitted
  • PyConES, PyConPT, PyConAPAC
  • Qt for Android catching up meeting
  • Bug fixing week
• Infra & Releases
  • 5.15.8 wrong source code was published PYSIDE-2297
• Bugs & Features
• PYSIDE-1951 super() and `__lt__` operator issue related to our wrapper.
• asyncio work continues
• enhancements for python-for-android to improve the android stories
• pyside6-android-deploy polished as well
• 2299 memory leak might have special cases related to the callback
• clang16 is giving some issues in Qt
• Icon examples libraries for the python examples research
• Snippet translator improvements

20. April 2023

• Bugs & Features
  • Work on support for clang 16, which changes behavior quite a bit
  • Fixed PYSIDE-2284 issue with NoneType
  • Fixed PYSIDE-2285 Type hints / Tuples
  • Fixed PYSIDE-2298 and others, fixed some missing 6.5 API
  • Added new tools - pyside6-qmlsc (commercial only) and pyside6-qmlcachegen
  • Simplified tool adding process
  • PySide6 to Android Deployment blog published 🤞
  • PYSIDE-1564 Final approach was implemented with a new super() class. But This approach was not helpful. Issue finally closed.
  • PYSIDE-1951 A solution was finally found and implemented. Trying to improve.
  • PYSIDE-2304 Issue resolved, Cooperative Multiple Inheritance explained with a custom example, customer is happy
  • PYSIDE-2299 Cause for memory leak has been found, but fix will not be trivial (might require extensive refactoring in worst case).
  • Debugging QtAsyncIoEventLoop, partly functional but still early.

13. April 2023

• General
  • SF 24.04 -> 16.05 ooo
  • CM 19.04 -> 27.04 ooo
  • QtCreator beta now includes an extra option to create virtual environments
• Infra & Releases
  • 6.5.0 released, but one missing DLL on windows for people without hw acceleration.
    • To be fixed in 6.5.1
  • 6.2.8 LTS to be released this week
  • Improving current state of the maintenance tool for Python
  • Second version of the packages in the server
  • https://discuss.python.org/t/pep-684-a-per-interpreter-gil/19583
  • https://discuss.python.org/t/pep-711-pybi-a-standard-format-for-distributing-python-binaries/25547
  • Qt Design Studio integration is on research
• Bugs & Features
  • Type hints PYSIDE-2284 issue with NoneType
  • 2283 Platform dependencies into our docs
  • Clang16 improvements to be compatible
  • Research on the missing DLL issue on Windows
  • Research on a memory leak possible related to Signal instances.
  • asyncio debugging with a self-made event loop
  • Improving the python-for-android changes to prepare a patch
  • Technical Preview blog post for Android in the making
  • PYSIDE-2294 multiple inheritance issue for a corner case with positional arguments
    • Researching a new approach that could improve things further

6. April 2023

• General
  • New Python releases 3.11.3, 3.10.11
• Infra & Releases
  • 6.5.0 released
  • 6.2.8 commercial LTS to go out soon
  • Review Maitenance Tool integration
  • qtpip server configuration still in progress
• Bugs & Features
  • Android: preparing post, tests, and general improvements.
  • PYSIDE-2266 venv issue with the deployment tool.
  • Documentation was released for 6.5.0 and many things were polished.
  • Async: continue working on the event loop wrapper implementation.
  • Research on memory leak that pyqtgraph found
  • Brushing up tutorials: expenses
  • Adding new examples: simplebrowser, screen capture
  • Documentation: found some issues with qdoc (from the move of examples to auto tests)
  • PYSIDE-2278 type hinting issue was fixed
  • Improvements to the documentation
  • Cleaning imports from examples
  • Add isort to the development guide
  • Exploring other projects where Python can shine

30. March 2023

• General
• Infra & Releases
  • 6.5 to be released next week
  • including requirements.txt along the commercial bundle
    • research if possible retroactively
  • qtpip research continues
• Bugs & Features
  • Features that needs to be in before 6.5
    • deployment tool nuitka patch
    • android tool
    • tutorial of thew new quick styled app
  • Improving enums to avoid using the old implementation
  • Deployment tool and android research continues
  • Async research on asyncio and trio proper integration
  • Refactoring
  • Shiboken examples are not displayed on the docs
  • Updating the new image of the project
  • Re-porting multimedia examples, simplebrowser
  • Initial support for permission API
  • small fixes on metaobjectdump

23. March 2023

• General
  • QtWS CfP open
  • EuroPython talks submitted
  • Keeping an eye on future Python events
• Infra & Releases
  • 6.4.3 is out
    • pypy3 3.9.12 compatible, newer versions included an incompatibility
  • 6.5 branching out today
• Bugs & Features
  • async support continues.
  • Fixing a couple of issues related to the pyside6-deploy tool.
    • venv compatibility
    • qml apps are not properly working
  • android support almost ready for TP
  • PYSIDE-2261 cython signature module incompatibility fixed
  • Removed goto from PySide
  • Multiple inheritance issues were fixed.
  • old Enums are being removed, and the startup time will improve a bit (still in progress)
  • PYSIDE-971 GL funtions implementation
  • including texttospeech into the wheels (missing by mistake)
  • adapting scripts to 6.5
  • metaobjectdump issue fixed
  • doc updates

16. March 2023

• General
  • Preparing submissions for Europython
  • New company colors
• Infra & Releases
  • 6.4.3 release next week (no release branch)
  • Issues with Nuitka 1.5.1 (released yesterday) and the CI didn't like it. Pining 1.5
• Bugs & Features
  • qtpip: add support for many other operators (for versions)
  • PYSIDE-2254 exit crash issue was fixed
  • PYSIDE-2251 designer issue when not initializing virtual environment.
  • qmlsurface example ported (polishing the C++ code as well)
  • example icons: discussions to standardize them a bit
  • android research: fixing some issues with qtquick
  • PYSIDE-1564 multiple inheritance work continues, really far but found new issues. Generalizing the solution a bit from a Shiboken point of view. Research on how shiboken handle multiple inheritance to be compatible with Python's way.
  • PYSIDE-2255 virtual method issue related to access to those members.
  • Generalization of QApplication usage on the tests.
  • Research: Add course to QtLearn related to Qt for Python
  • doc: some links are broken.
  • doc: migration to sphinx-design from sphinx-panels

9. March 2023

• General
  • Packing use-cases
  • Europython CfP: https://ep2023.europython.eu/cfp
• Infra & Releases
  • Preparing 5.15.13: release might be today if nothing goes wrong.
  • Wheel bundles on the account.qt.io, and soon to be available in the Maintenance Tool
• Bugs & Features
  • Re-added QtLocation
  • Added larger examples for QtLocation, QtDataVisualization
  • Android research continues, preparing a TP
  • https://bugreports.qt.io/browse/PYSIDE-2169 Leak related to AsyncIO was finally fixed: related to the new Enum implementation
    • PyErr_Fetch/Restore does ref counting, and not borrow ref
  • qtpip works continues
  • https://bugreports.qt.io/browse/PYSIDE-79 bug signal instance: fixed most if not all possible errors.
  • https://bugreports.qt.io/browse/PYSIDE-1403 pyi still produces something not fully working with IDEs
  • https://bugreports.qt.io/browse/PYSIDE-1564 First version of the implementation of multiple inheritance is working
    • Not a general solution, but a good approach (compatible with a competitor).
    • Working on a full support to handle multiple inheritance

2. March 2023

• General
  • Preparing internal/external material
  • Next monday CI maintenance break
• Infra & Releases
  • commercial wheel bundles available on account.qt.io
  • 6.4.3 release was postponed
• Bugs & Features
  • Improvements for qtpip
  • postEvent() memory leak still has an unknown origin
  • PYSIDE-2236 QMetaMethod.fromSignal added
  • PYSIDE-2237 be careful with using reserved words in examples/docs/...
  • PYSIDE-2239 opaquecontainers wrong dunder name
  • PYSIDE-2206 Examples revamping
    • Maybe we keep some examples around even if they are removed in Qt/C++
  • Android work continues! looking good with 6.5
  • PYSIDE-1564 Multiple inheritance story was improved, still in progress.

23. February 2023

• General
  • Giving a talk at Python La Paz (on Saturday) - in Spanish
• Infra & Releases
  • 6.4.3 ready to start the release process
  • Change to fix the windows signing is merged
• Bugs & Features
  • 3.12 compatibility changes will reach 5.15, 6.2, and the future 6.5 LTS
  • PYSIDE-79 (caused by PYSIDE-68) refcounting issues addressed
  • Continue the 3.12 support because of some new issues found
  • PYSIDE-1564: Multiple inheritance support is still being worked (old ABC issues might be related)
  • Issues with documentation build (sphinx)
  • Research on a memory leak related to the asyncio example: it's not related to asyncio, but from the posting action (pyside, and not Qt, because a C++ example with no async doesn't have any leak)
  • PYSIDE-2234 adding QRunnableCreate
  • fixed 6.5 issues with cross compilation
  • Designer examples revamp
  • Works continues on qtpip (a pip wrapper to install commercial wheels)
  • PYSIDE-2232 NixOS issues was fixed (another was deferred)
  • Research on the std::span support
  • Unity compilation research continues
  • Bug cleanup, closing and fixing old ones.
  • OpenGL getProc issue is being worked on.
  • PYSIDE-2192 interactive matplotlib issue (hook)

16. February 2023

• General
  • Development of a tool for commercial wheel installation started, and other general improvements.
  • Blog posts -> 6.5 release, and Android research.
  • Don't forget about Europython.
• Infra & Releases
  • Branching dev to 6.5 when the Qt/C++ 6.5.0 RC is out (16 Mar '23)
    • Only fixes go to dev with Pick-to: 6.5 if necessary
    • new features remain in dev (for 6.6)
• Bugs & Features
  • nogil research was positive, and most of our test work. It would require for us to modify the generator for each function/module.
    • mandelbrot example works and improves its performance around 3.5 times.
  • Python 3.12 will include an incompatibility due to the changes in the type generation
    • https://github.com/python/cpython/issues/60074#issuecomment-1430115581
    • some other issues were found, but not as critical as the tp_new issue.
  • It will be possible to install pyside6 in conda environments starting from 6.4.3 and 6.5
  • commercial identifier on commercial wheels will be replaced to be compatible with distutils
  • asyncio research continues
  • Adapting the deploy tool to include compatibility with android (in progress)
  • research on ML-based tool to transform c++ <-> python
  • Getting started docs updated
  • qtdoc documentation content will be included in the docs
  • doc issues: some broken links and references
  • General slides to be updated

09. February 2023

• General
  • How to make our API better for pathlib?
  • 3.11.2 released, 3.10.10 as well
  • https://peps.python.org/pep-0675/
• Infra & Releases
  • LTS tags cannot be pushed to community repo (permissions), hopefully in this week.
  • Maintenance Tool updates soon
  • Binary signing still need a little change to be working
  • dev to use 6.5 starting today
• Bugs & Features
  • Android research in progress, looking good :)
  • A solution was proposed to fix the usage of PySide6 in conda environments: still needs tweaks to work, mainly related to an internal qt.conf that's loaded at runtime.
  • PYSIDE-2222 custom widget plugin, load with uic crash
  • PYSIDE-2201 was fixed: introducing weak references into the SignalInstances.
  • PYSIDE-79 was possible to solve (from PYSIDE-68 solution). Still needs to some documentation to be written.
  • PYSIDE-2221 research on future compatibility with NoGIL Python https://github.com/colesbury/nogil https://peps.python.org/pep-0703/
  • https://github.com/blueloveTH/pocketpy also interesting

02. February 2023

• General
  • Europython 2023 will be in Prague! 17-23 July
• Infra & Release
  • Improving wheel creation in our CI (signing windows, and other things)
  • Soon we will have released LTS in the OSS repo (after some complications)
  • CI Maintenance break coming next Monday (keep an eye open to the Python configuration)
• Bugs & Features
  • Unity builds were helping pyside/shiboken, and some tests are being done in qt/c++
  • meta task on revamping examples in the Qt Project
  • Adding uic functionality and documentation
  • Doc reviews, some issues were found
  • Android development continues, and looks good!
  • introducing --log-level to change --verbose-build and --quiet
  • Overhaul of Signal/SignalInstance continues:
    • PYSIDE-2201 Weak Reference handling is complete
    • PYSIDE-79 Research on Reference bug continues
  • create_wheels.py --builddir to explicitly provide build directory
  • WIP: QtAsyncIoEventLoop using Qt's event dispatcher, using BaseEventLoop and BaseSelectorEventLoop for guidance

26. January 2023

• Infra & Releases
  • Fixed issues with Windows signing
• Bugs & Features
  • Fixed PYSIDE-2204 qt.conf encoding
  • Fixed bugs in pyside6-metaobjectdump (QML) PYSIDE-2202 , PYSIDE-2203
  • PYSIDE-2194: Possibly requires refactoring of QLowEnergyController to use the new WinRT API, instead of COM API
  • Android Deployment - Patches incoming to automate cross compilation to produce android wheels
  • Overhaul of Signal/SignalInstance
    • Implement Weak Reference Handling
    • PYSIDE-2201 Handle early destruction of the object better
    • PYSIDE-79 Trying to finally fix the reference leak using weakref.
  • Alternative approach to Anaconda issue: Register internal qt6.conf with site-packages prefix (still WIP).
  • WIP: Implement class QtAsyncIoEventLoop(asyncio.AbstractEventLoop) that wraps around Qt's event loop to enable Qt + asyncio.
  • Memory leak with current asyncio example (or space leak?)

19. January 2023

• General
  • Hackathon in TQtC
  • The WebAssembly PySide Team was almost doubled in size (+1 brain, +1 hand)
• Infra & Releases
  • Windows signing to be improved.
  • LTS releases into oss repo: some issues appeared but will be merged soon.
• Bugs & Features
  • PYSIDE-1994: De-virtualization of Shiboken embedded Python files is now an option controlled dynamically by SBK_EMBED
    • PYSIDE-1019: A dormant __feature__ initialization timing problem was fixed while implementing de-virtualization
  • PYSIDE-1735: De-coupling of old and new enums was started
  • PYSIDE-1564: Debugging of multiple inheritance continues
  • Fixed some bluetooth functions in PySide6.
  • Low Energy Scanner Example
  • PYSIDE-2194: Progressing with this. Definitely a thread issue which allow-thread doesn't seem to fix.
  • Possible solution for problems with PySide6 inside conda (compat package with qt6.conf file), but investigating if best solution

12. January 2023

• General
  • Next week is Hackathon, meeting will be shorter
  • Discussion on how to gather information, and sharing material around Qt for Python
• Infra & Releases
  • 6.5 RC planning -> feature freeze for PySide
  • 6.4.2 was released last Monday
  • CMake Jumbo builds issue with Windows signing
  • LTS branches to land in pyside-setup soon
• Bugs & Features
  • Async examples: addressing memory leak and cpu usage due to the event loop interactions
  • Review conda packaging story and PySide6
  • De-virtualization of Python files: still some issues
  • Incompatibility with pywin32: __feature__ related when trying to check if the ext module uses PySide. Also related to an issue with the inspect module.
  • Installing PySide6.support via CMake (was previously not considered)
  • Work continues on the multiple inheritance issues related to classes based on QObject
  • locate issues related to to* methods
  • std::array support in shiboken (still in progress)
  • fixing imports in matplotlib examples
  • adaptation to 6.5
  • splitting shiboken generator source to its own
  • Android deployment works - tested on Widget applications
  • Fixing QTBUG-109510 leading to discovering issues with certain functions in PySide6. Being fixed.

5. January 2023

• General
  • Next monday CI maintenance
  • OKRs
• Infra & Releases
  • 5.15.12 LTS, 6.2.7 LTS released
  • Open Source LTS releases to be moved to the pyside-setup
  • 6.4 CI hanging, issues on lts-5.15 due to Python
  • 6.4.2 to be release in the following days
• Bugs & Features
  • PYSIDE-1931 SQL issue regarding allow-thread
  • helping 6.5 translations
  • Adaptations with 6.5
  • QSharedPointer -> std::shared_ptr attempt
  • research on adding std::span into shiboken
  • PYSIDE-2160 properties qml types issues
  • Tutorials language review
  • Android research continues
  • QTBUG-109510 BTLE issue on pyside

2022

• Qt for Python Development Notes 2022

2021

• Qt for Python Development Notes 2021

2020

• Qt for Python Development Notes 2020

2019

• Qt for Python Development Notes 2019

2018

• Qt for Python Development Notes 2018