Qt for Python Development Notes: Difference between revisions

Revision as of 06:42, 14 September 2023

2023

21. September 2023

General
- ...
Infra & Releases
- ...
Bugs & Features
- ...

14. September 2023

General
- ...
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

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

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Qt for Python Development Notes 2022

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Qt for Python Development Notes 2021

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Qt for Python Development Notes 2020

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Qt for Python Development Notes 2019

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Qt for Python Development Notes 2018

@@ Line 14: / Line 14: @@
 ** ...
 * Infra & Releases
-** ...
+** Testing and fixing qtpip for commercial wheels
 * Bugs & Features
-** ...
+** [https://bugreports.qt.io/browse/PYSIDE-2460 PYSIDE-2460] Work on some OpenGL issues, updated hellogl2 example
+** [https://bugreports.qt.io/browse/PYSIDE-2461 PYSIDE-2461] Build system for cross build fixes
+** [https://bugreports.qt.io/browse/PYSIDE-2463 PYSIDE-2463] Fixed some type hints
 ===07. September 2023===

Qt for Python Development Notes: Difference between revisions

Revision as of 06:42, 14 September 2023

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