serious_python 4.5.1

A cross-platform plugin for adding embedded Python runtime to your Flutter apps.

4.5.1

• iOS/macOS: the bundled Python, dart_bridge and stdlib extension XCFrameworks are now signed on both layers — each slice's inner .framework as well as the outer .xcframework. 4.5.0 signed only the outer bundle. Note this did not change isSecureTimestamp, which still reports false — that field appears not to be reachable by signing; signed, which ITMS-91065 names, is true. See serious_python_darwin 4.5.1.
• Packaging now verifies both layers, so an unsigned slice fails the build instead of surfacing in an App Store submission. Set SERIOUS_PYTHON_VERIFY_PROVIDER_SIGNATURES=require for release builds.
• Bundled python-build snapshot re-pinned to 20260730 (dart_bridge 1.7.0 → 1.7.1). No Python version moved — 3.12.13 / 3.13.14 / 3.14.6 and Pyodide are unchanged from 20260729.

4.5.0

• iOS/macOS: the pre-built Python, dart_bridge and stdlib extension XCFrameworks are now staged byte-for-byte and never modified. SERIOUS_PYTHON_BUNDLE_ID now namespaces only the frameworks built from your app's wheels; the pre-built ones keep the stable dev.flet.* identifiers their publisher assigned.
• This corrects 4.4.2. Rewriting those identifiers was a hypothesis for the ITMS-91065: Missing signature App Store rejection (flet-dev/flet#6724) and it was wrong — the rejection reports on the publisher's signature of each XCFramework, which Xcode records in the IPA separately from your app's own signature, and the identifier rewrite destroyed it. See serious_python_darwin for the full explanation.
• iOS: use the Swift Package Manager packaging path for App Store submissions. The CocoaPods path copies inner .framework bundles and cannot produce the SDK-origin signature receipts Apple's scan looks for; it now warns during the build.
• New SERIOUS_PYTHON_VERIFY_PROVIDER_SIGNATURES (warn default / require / off) and SERIOUS_PYTHON_EXPECTED_TEAM_ID env vars verify those publisher signatures during packaging. Set require for release builds.
• Bundled python-build snapshot re-pinned to 20260729 (dart_bridge 1.6.1 → 1.7.0). No Python version moved — 3.12.13 / 3.13.14 / 3.14.6 and Pyodide are unchanged from 20260727 — but every Apple XCFramework in that release is now signed by the Flet publishing team with a secure timestamp. See serious_python_darwin 4.5.0.

4.4.2

• iOS: new SERIOUS_PYTHON_BUNDLE_ID env var namespaces the generated frameworks' bundle identifiers under your app (com.example.myapp.-ssl) instead of a shared org.python.* default identical in every app built with serious_python. flet build sets it for you; set it yourself for a manual two-step build, in both places you set SERIOUS_PYTHON_SITE_PACKAGES.
• iOS: the bundled Python frameworks (_ssl, _hashlib and every other native extension) now carry the build-provenance keys Xcode stamps into a real framework's Info.plist, instead of a minimal hand-written one.
• Both are hypotheses under test for the ITMS-91065: Missing signature App Store rejection in flet-dev/flet#6724 — neither is a confirmed fix. Only new App Store submissions are affected by that rejection; existing published apps are not. See serious_python_darwin 4.4.2.
• Bundled python-build snapshot re-pinned to 20260727. No versions moved — Python (3.12.13 / 3.13.14 / 3.14.6), Pyodide, and dart_bridge 1.6.1 are unchanged from 20260726.

4.4.1

• iOS: the bundled _ssl and _hashlib frameworks now ship OpenSSL's official privacy manifest instead of an incomplete stub, correcting what they declare under Apple's third-party SDK requirements. This is a correctness fix and is not expected to resolve the ITMS-91065: Missing signature App Store rejection reported in flet-dev/flet#6724, which remains under investigation. See serious_python_darwin 4.4.1.
• Bundled python-build snapshot re-pinned to 20260726. No versions moved — Python (3.12.13 / 3.13.14 / 3.14.6), Pyodide, and dart_bridge 1.6.1 are unchanged from 20260725.

4.4.0

• iOS/macOS: fix built iOS apps crashing at startup with Failed to lookup symbol 'serious_python_run'. dart_bridge now ships as a dynamic framework, so the FFI entry points Dart and Python resolve via dlsym stay exported; previously it was static-linked into the app executable, which exports nothing. Release/device builds only. See serious_python_darwin 4.4.0.
• Bundled python-build snapshot re-pinned to 20260725 (dart_bridge 1.5.1 → 1.6.1, which carries the dynamic-framework change above; Pyodide 3.14 314.0.2 → 314.0.3). Python versions (3.12.13 / 3.13.14 / 3.14.6) are unchanged.

4.3.6

• Android: PEP 734 subinterpreters (Python 3.14's concurrent.interpreters / InterpreterPoolExecutor) now work in built apps. Previously the main interpreter could import them, but every subinterpreter failed to import any relocated C extension (ModuleNotFoundError: _struct / _interpqueues / ...) — which broke the whole feature (its cross-interpreter transport pickles → _struct, and its queues need _interpqueues). The native-module finder lives on sys.meta_path, which is per-interpreter, and was installed only in the main interpreter. See serious_python_android 4.3.6.
• Windows: fix startup with non-ASCII app paths or environment values — Dart FFI strings (UTF-8) are now converted to UTF-16 before being passed to the Windows CRT, so paths/env values are no longer corrupted through the process ANSI code page, and Python UTF-8 mode is enabled before Py_Initialize(). See serious_python_windows 4.3.6 and flet-dev/flet#6641.
• Bundled python-build snapshot re-pinned to 20260720 (dart_bridge 1.5.0 → 1.5.1, which carries the Windows fix above). Python versions (3.12.13 / 3.13.14 / 3.14.6) are unchanged.

4.3.4

• Windows/Linux: desktop apps on Python 3.14 no longer crash at startup with ModuleNotFoundError: No module named '_pyrepl' when the app (or a dependency, e.g. NLTK) imports pydoc or pdb. _pyrepl was pruned from the desktop stdlib as a dev-only module, but 3.14's pydoc/pdb import it at module load. See serious_python_windows / serious_python_linux 4.3.4 and flet-dev/serious-python#236.
• Bundled python-build snapshot re-pinned to 20260719; the only change vs 20260714 is the desktop _pyrepl un-prune above. All runtime versions (Python 3.12.13 / 3.13.14 / 3.14.6, dart_bridge 1.5.0) are unchanged from 4.3.3.
• Android: fix code edits not taking effect under flet debug android — the app kept running stale code after a re-run because the on-device extraction cache wasn't invalidated by a same-version reinstall. See serious_python_android 4.3.4 and flet-dev/flet#6682.

4.3.3

• Windows: fix flet build windows failing on non-UTF-8 system locales (e.g. Simplified-Chinese Windows, code page 936/GBK) with error C2220 (escalated from warning C4819) while compiling the Windows plugin — a non-ASCII character in a source comment couldn't be decoded under GBK and the Flutter template's /WX made it fatal. The character is removed and the plugin now builds with /utf-8. See serious_python_windows 4.3.3 and flet-dev/flet#6686.
• No runtime changes: bundled Python versions (3.12.13 / 3.13.14 / 3.14.6) and dart_bridge (1.5.0) are unchanged from 4.3.2.

4.3.2

• iOS: interdependent bundled dylibs (e.g. pyarrow, llama-cpp-python) no longer crash the app at launch with dyld: Library not loaded: @rpath/lib<X>.dylib — the framework install-ids and sibling @rpath references are reconciled to the relocated framework paths (#223). See serious_python_darwin 4.3.2.
• Android: fix import <pkg> yielding an empty module for a package whose __init__ is itself the native extension (e.g. apsw) — the extension is now resolved from its <pkg>/__init__.soref marker. See serious_python_android 4.3.2.
• Bump the bundled python-build snapshot to 20260714, fixing three on-device crashes. Bundled Python versions (3.12.13 / 3.13.14 / 3.14.6) and dart_bridge (1.5.0) are unchanged from 4.3.1.
• Android: fix 3.13/3.14 apps crashing with SIGSYS before any app code runs on x86_64 (and other ABIs with a 32-bit-style SYS_open) — mimalloc's raw open(2) syscall is forbidden by Android's seccomp policy. See serious_python_android 4.3.2.
• iOS/Android: _pyrepl is no longer pruned from the mobile stdlib — Python 3.14's pdb imports it at module load, so anything importing pdb (e.g. pytest's debugging plugin) failed with ModuleNotFoundError: No module named '_pyrepl'. See serious_python_darwin / serious_python_android 4.3.2.
• iOS: import multiprocessing (e.g. via scikit-learn/joblib) no longer fails with ModuleNotFoundError: No module named '_posixshmem' — the _posixshmem extension is now built into the iOS runtimes alongside _multiprocessing. See serious_python_darwin 4.3.2.

4.3.1

• Android: fix flet build apk --arch x86_64 (or any --arch subset not including arm64-v8a) producing an APK with an empty sitepackages.zip — the app shipped without its Python dependencies and the first import failed at startup. See serious_python_android 4.3.1.

4.3.0

• Desktop multiprocessing support (flet-dev/flet#4283). dart_bridge 1.5.0 adds serious_python_is_mp_invocation / serious_python_main (+ _w wide-char variants on Windows): host apps call them first thing in main to detect CPython child command lines (--multiprocessing-fork, -c "from multiprocessing..." — spawn workers, the resource tracker, and the forkserver) and service them as a plain headless interpreter (Py_Main/Py_BytesMain, stable ABI) instead of re-launching the GUI. The exports rely on the PYTHONHOME/PYTHONPATH the parent already stamped process-wide.
• PYTHONINSPECT=1 is no longer set by any platform implementation. It had no effect on the embedded interpreter, but it leaked into the process environment where any real interpreter child (e.g. a serviced multiprocessing worker) would inherit it and hang in interactive mode after its command completed.
• Bump the bundled python-build snapshot to 20260708, which delivers dart_bridge 1.5.0; Pyodide for 3.14 bumped 314.0.1 → 314.0.2. Bundled Python versions are unchanged from 4.2.1 (3.12.13 / 3.13.14 / 3.14.6).
• Windows: fix flet build windows failing with file INSTALL cannot find "C:/WINDOWS/System32/vcruntime140_1.dll" for users who build with VS Build Tools rather than full Visual Studio (a WOW64 file-system-redirection issue with the bundled 32-bit cmake). See serious_python_windows 4.3.0.

4.2.1

• iOS/macOS: ctypes packages that ship plain .dylib shared libraries (e.g. llama-cpp-python's libllama / libggml) now load on the iOS simulator. Such .dylibs are now packaged as per-slice xcframeworks (previously only .so C-extensions were), so they carry a simulator slice instead of shipping the device build and failing dlopen with incompatible platform (have 'iOS', need 'iOS-simulator'); their install-name is preserved so multi-lib packages still resolve their sibling libs. See serious_python_darwin 4.2.1.
• iOS: the _multiprocessing extension is now built into the runtime (importable, not spawnable) via flet-dev/python-build 20260701. Bundled Python versions are unchanged from 4.2.0 (3.12.13 / 3.13.14 / 3.14.6).

4.2.0

• Android: armeabi-v7a (32-bit ARM) is now bundled for Python 3.13 and 3.14, not just 3.12 — flet-dev/python-build 20260630 publishes 32-bit ARM runtimes for those minors (built with dart_bridge 1.4.1). The package command's hardcoded "3.12-only" armeabi-v7a skip is replaced by a manifest-driven check against each minor's PythonRelease.androidAbis, so the wheel fan-out (and the Android plugin's abiFilters) follow whatever python-build publishes per minor.
• Bundle 3.12.13 / 3.13.14 / 3.14.6 (python-build 20260630; CPython-standalone 20260623); Pyodide 0.27.7 / 0.29.4 / 314.0.1 (3.14 bumped 314.0.0 → 314.0.1).

4.1.1

• Android: fix two startup crashes — apps crashing on launch on Android 8.1 and below (API < 28) due to an unguarded getLongVersionCode() call, and the interpreter failing to start on a non-primary ABI (e.g. an x86_64 emulator) with ModuleNotFoundError: No module named '_sysconfigdata__android_<arch>-linux-android'. See serious_python_android 4.1.1.

4.1.0

• Android: run first-launch asset unpacking and native library loading off the platform main thread so they no longer block vsync — boot-time animations (e.g. a splash / boot screen spinner) stay smooth while the app starts. Also ship consumer ProGuard rules that keep the pyjnius bootstrap classes, fixing pyjnius in release (minified) Android builds. See serious_python_android 4.1.0.

4.0.0

• App packaging lifted into serious_python. Your Python app now ships unpacked inside the application bundle, next to the Python stdlib and site-packages, on macOS / iOS / Windows / Linux — no first-launch app.zip extraction. On Android the app ships as a stored app.zip asset inside the APK and is unpacked once (version-keyed) to the app-support files dir on the first launch after an install/update, like the existing extract.zip. Web (Pyodide) is unchanged. The package command stages the processed app into SERIOUS_PYTHON_APP (symmetric with SERIOUS_PYTHON_SITE_PACKAGES); each platform's native build copies it into the bundle (Android zips it as a stored asset).
• New SeriousPython.prepareApp() — materializes the app (Android first-launch unpack) and returns the directory containing its entry point. SeriousPython.run() now takes no assetPath argument (it resolves the app via prepareApp()), sets the current directory to a writable per-app data dir (<application-support>/data) — not the read-only bundle — so relative file writes / SQLite work, and runs main.pyc/main.py (or appFileName).
• Breaking change: the app.zip asset convention and the runtime zip-extraction API are removed — SeriousPython.run("app/app.zip"), extractAssetZip, and extractFileZip no longer exist. Repackage with dart run serious_python:main package <app> -p <platform> and call SeriousPython.run() with no arguments.
• Android: the runtime payload moved to <application-support>/flet/{app, stdlib.zip, sitepackages.zip, extract/} (resolved via getApplicationSupportDirectory(); the custom getFilesDir method channel is dropped). User data in the sibling <application-support>/data survives app updates.
• Swift Package Manager (darwin) staging in the package command — on by default. For iOS/macOS the package command runs the host-side equivalent of the podspec prepare_command (which SPM has no hook for) by resolving serious_python_darwin's darwin/ dir (SERIOUS_PYTHON_DARWIN_DIR override, else the project's package_config.json), invoking prepare_spm.sh, and writing the SP_NATIVE_SET cache-bust key to build/.serious_python_spm_key (overridable via SERIOUS_PYTHON_SPM_KEY_FILE) for the caller to export into the flutter build environment. SPM is Flutter's default darwin integration since 3.44, so this happens by default — set SERIOUS_PYTHON_DARWIN_SPM to a falsy value (0/false/no/off) to opt out and build with CocoaPods (the podspec stages then). See serious_python_darwin 4.0.0.

3.0.0

• New in-process transport (dart_bridge FFI). SeriousPython.run can now run the embedded interpreter in-process through the dart_bridge FFI bridge instead of talking to it over a socket. The Python lifecycle (initialize / run / teardown) is absorbed into the dart_bridge native library on every platform — dart_bridge.xcframework (iOS/macOS), libdart_bridge.so (Android/Linux), and dart_bridge.dll / dart_bridge.pyd (Windows) — and a new PythonBridge API exposes a MsgPack control channel plus dedicated binary data channels between Dart and Python. See the bridge_example app. The bundled dart_bridge is 1.4.0.
• Android native packaging — memory-mapped from the APK. Python extension modules are relocated into jniLibs and loaded directly from the APK (mmap, no extraction) by a custom importer that resolves them from .soref markers; pure Python ships in stored, ABI-common asset zips read via zipimport (no per-ABI duplication). Apps no longer need useLegacyPackaging / keepDebugSymbols — the brittle per-app packaging config is gone. Set SERIOUS_PYTHON_ANDROID_EXTRACT_PACKAGES (comma-separated relative paths) to ship path-hungry packages extracted to disk. The dart-bridge Android binary uses the full CPython API (PyConfig) to install the importer before site runs.
• Breaking change: requires Flutter 3.44.2 / Dart 3.12+. The Android plugin moves to AGP 8.11.1, compileSdk 36, Java 17, and the Kotlin-DSL Gradle build (build.gradle.kts).
• Python runtime versions are now a committed snapshot of flet-dev/python-build's date-keyed manifest.json, generated by dart run serious_python:gen_version_tables. SERIOUS_PYTHON_VERSION (short, e.g. 3.14) is the single input — the full CPython version, python-build release date, Pyodide version + platform tag, and dart_bridge version all derive from it. SERIOUS_PYTHON_FULL_VERSION, SERIOUS_PYTHON_BUILD_DATE, and DART_BRIDGE_VERSION remain as rarely-needed escape hatches. The native build configs (Android build.gradle, Darwin podspec, Linux/Windows CMakeLists.txt) read the generated python_versions.properties, and a CI job fails if the snapshots drift from the manifest. This replaces the per-config hardcoded defaults and the flet build-exported SERIOUS_PYTHON_FULL_VERSION / SERIOUS_PYTHON_BUILD_DATE introduced in 2.0.0.
• Bundle 3.12.13 / 3.13.14 / 3.14.6 (python-build 20260614); Pyodide 0.27.7 / 0.29.4 / 314.0.0 (314.0.0 GA, up from the 314.0.0a2 in 2.0.0).
• Add dart run serious_python:main version [--json] — prints the serious_python version, the pinned python-build release, and the supported Python / Pyodide / dart_bridge matrix.
• The embedded Darwin runtime re-extracts when the selected Python version changes (a version marker guards dist_ios / dist_macos), so a clean build after switching --python-version can't mix C-extension ABIs (bad magic number / unknown slot ID).
• Cache downloaded Python distributions and dart_bridge artifacts under $FLET_CACHE_DIR (default ~/.flet/cache) across all platforms.
• Remove the scaffold getPlatformVersion method from the platform plugins.
• Drop the x86 (32-bit Intel) Android ABI — Flutter no longer produces it. Android builds target arm64-v8a + x86_64 (plus armeabi-v7a on Python 3.12); the x86 wheel platform-tag entry and the Android packaging rules referencing it are removed.
• Android ABI list now reads from python-build's manifest (per-minor android_abis, surfaced as <short>.android_abis in python_versions.properties and PythonRelease.androidAbis in the generated Dart) instead of the hardcoded if pythonVersion == "3.12" branch in serious_python_android/android/build.gradle.kts. Drives both defaultConfig.ndk.abiFilters and the per-ABI download/copy fan-out; adding a future minor only needs the one-line manifest edit.
• Breaking change: the configure command (and the bare in-place version-switching machinery, including stageDarwinRuntime) is removed. Switching the bundled Python version between builds is now handled by a clean rebuild — flet build wipes its build dir on a version change, and the Darwin dist_ios / dist_macos version marker re-extracts the runtime — so a separate serious_python configure step is no longer needed.
• Bug fix: the Pyodide 0.29 wheel platform tag for the 3.13 row was pyodide-2025.0-wasm32, but Pyodide publishes 0.29 wheels under pyemscripten_2025_0_wasm32; corrected to pyemscripten-2025.0-wasm32 so flet build web --python-version 3.13 matches native wheels.

2.0.0

• Breaking change: the package command's default Python is now the latest supported stable (3.14), up from the previously implicit 3.12. Scripts that ran dart run serious_python:main package … without --python-version will now download CPython 3.14, install 3.14 wheels, and use the matching Pyodide / Android platform tags. Pin explicitly with --python-version 3.12 (or SERIOUS_PYTHON_VERSION=3.12) to preserve the old behavior.
• Breaking change: Android sysconfig.get_platform() tag format changed from android-24-arm64-v8a to android-24-arm64_v8a (and similarly for armeabi-v7a). The emitted wheel tag (android_24_arm64_v8a) is unchanged, but anything reading the raw sysconfig.get_platform() string from sitecustomize.py should switch separators.
• Breaking change: Windows host arch identifier dropped the -shared suffix (x86_64-pc-windows-msvc-shared → x86_64-pc-windows-msvc); follows astral-sh/python-build-standalone, which only publishes the combined (already shared) install_only_stripped build.
• Multi-version Python support. The package command accepts --python-version (or SERIOUS_PYTHON_VERSION env var) to select between Python 3.12 / 3.13 / 3.14. The matching CPython-standalone build, Pyodide release, and Emscripten wheel platform tag are looked up from a new _pythonReleases table. Adding a future pre-release line (e.g. 3.15 beta) is a one-row append with prerelease: true; the Flet CLI uses that flag to keep open-ended requires-python specifiers (>=3.14) on stable, while still letting --python-version 3.15 or ==3.15.* opt in.
• The Emscripten pip platform tag is now derived per Python release (e.g. pyodide-2024.0-wasm32 for 0.27.7, pyemscripten-2026.0-wasm32 for 314.0.0a2), via a pyodide_platform_tag field in the version registry. The previous static pyodide-2024.0-wasm32 entry in platforms["Emscripten"] has been removed.
• sitecustomize.py now shims platform.android_ver so the new pip / packaging that ships with python-build-standalone 20260602+ can compute Android wheel tags on Python 3.12 hosts (where android_ver didn't exist) and on Python 3.13+ hosts (where it returns api_level=0 off-device).
• Skip 32-bit Android ABIs (armeabi-v7a, x86) when Python ≥ 3.13 — PEP 738 dropped 32-bit Android support, and flet-dev/python-build no longer publishes those runtimes for those versions.

1.0.1

Improvements

• Cache downloaded Python distribution tarballs (python-android-dart-<py>-<abi>.tar.gz) across builds. The downloadDistArchive_* Gradle tasks now write to a persistent cache directory — $FLET_CACHE_DIR/python-build/v<python_version>/ if the env var is set, otherwise ~/.flet/cache/python-build/v<python_version>/ — and use onlyIfModified true + useETag "all" so subsequent builds issue a conditional GET (If-None-Match / If-Modified-Since) against objects.githubusercontent.com instead of re-downloading 30–100 MB per ABI per build. When the upstream release republishes a tarball at the same URL (e.g. a Python patch update under the existing v<py> release), the validators flip and the cache refreshes automatically; otherwise the build skips the download entirely. tempAndMove true guards against partial downloads being kept in the cache (flet-dev/flet#6555, #208) by @FeodorFitsner.

Bug fixes

• Set PIP_REQUIRE_VIRTUALENV=false for pip install in the package command so packaging works in environments where users have globally exported PIP_REQUIRE_VIRTUALENV=true (#202, #204) by @FeodorFitsner.

1.0.0

• Breaking change: --platform argument value Pyodide has been renamed to Emscripten to match what platform.system() returns in the Pyodide runtime, so PEP 508 markers like platform_system != 'Emscripten' work consistently.

0.9.12

• Fix web packaging to skip site-packages when appropriate (#199).

0.9.11

• Disable user-site packages in pip environment (#195).

0.9.10

• Android: Add debug logs and deduplicate FFI imports.
• Android: Invalidate extracted assets when version keys change.

0.9.9

• Add zipDirectoryPosix to create POSIX-compliant app archives on Windows.
• Enforce C++20 standard for serious_python plugin build.
• Fix: Normalize WINDIR path for bundled DLLs in CMake.
• Fix Logcat logging crash on some Android devices.

0.9.8

• Fix logging on Android.

0.9.7

• Fix app restart on Android 10.
• Redirect Python output to logcat.

0.9.6

• Make zipDirectory call asynchronous.

0.9.5

• Bump archive to ^4.0.7.
• Fixed iOS framework identifier generation.

0.9.4

• 16 KB memory page support for Android 15+ (by @ReYaNOW).

0.9.3

• Fix: Hidden files in site-packages are skipped when building macOS app.
• Fix: Do not delete package metadata in .dist-info directories (#164).

0.9.2

• Breaking change: multiple --requirements options of package command must be passed as --requirements DEP_1 --requirements DEP_2 ... (or -r DEP_1 -r DEP_2 ...) instead of -r DEP_1,DEP_2,... to support dependency specifications with commas, e.g. pandas>=2.2,<3.
• Fix site-packages packaging for Pyodide platform.

0.9.1

• Fix serious_python to work on macOS 12 Monterey and built with Xcode 14.

0.9.0

• Set MinimumOSVersion to 13.0 for generated Python frameworks.
• iOS and macOS packaging: Python system libraries are put into python.bundle to pass App Store verification.
• On macOS, Windows, and Linux, application site packages are copied in an unpacked state to the application bundle to speed up the first launch.
• Pyodide 0.27.2
• Python 3.12.9
• Packaging --cleanup option replaced with two separate --cleanup-app and --cleanup-packages options.
• New packaging options --cleanup-app-files and --cleanup-package-files to specify a list of globs to exclude files and directories from app and site packages.
• New packaging --skip-site-packages option to skip site packages installation for faster re-builds.
• Packaging --arch option accepts a list now.

0.8.7

• Fixed: xcframeworks migration script didn't work for sub-directories.

0.8.6

• Added com.flet.serious_python_android.PythonActivity holder class with mActivity holding a reference to an app MainActivity. Needed for plyer.
• Android plugin sets MAIN_ACTIVITY_HOST_CLASS_NAME environment variable with the name of activity holder class name (com.flet.serious_python_android.PythonActivity).
• Android plugin sets MAIN_ACTIVITY_CLASS_NAME environment variable with a class name of an app MainActivity.
• Android plugin sets ANDROID_NATIVE_LIBRARY_DIR environment variable with the path to a directory containing app .so libraries. Needed for patching ctypes.find_library.
• Changed behavior of SERIOUS_PYTHON_ALLOW_SOURCE_DISTRIBUTIONS environment variable that should contain a comma-separated list of packages to allow installation from source distribution.
• Fixed: iOS site-packages to xcframeworks migration script supports both library.so and library.{something}.so.

0.8.5

• Added Java loadLibrary to Android plugin to support pyjnius (#128).

0.8.4

• Copy site-packages/flutter contents to SERIOUS_PYTHON_FLUTTER_PACKAGES.
• Added SERIOUS_PYTHON_ALLOW_SOURCE_DISTRIBUTIONS variable to allow pip installing from source distributions.

0.8.3

• Remove PYTHONOPTIMIZE=2 to make CFFI work.

0.8.2

• Copy .so libraries from {site-packages}/opt to jniLibs.

0.8.1

• Remove --only-binary when packaging for desktop platforms (#112)
• Fixed: only pass string args ('script') if they are not null. (#77)
• Fixed: script set as empty string to fix windows build error (#83)

0.8.0

• Not based on Kivy!
• Fast packaging uses pre-built Python binary packages hosted on https://pypi.flet.dev and https://pypi.org. If a binary package for specific platform/arch is not found the packaging process does not make an attempt to compile it, but just exits with a meaningful error.
• To package for iOS and Android developer should set SERIOUS_PYTHON_SITE_PACKAGES environment variable with a path to a temp directory for installed app packages. The contents of that directory is embedded into app bundle during app compilation. For macOS, Linux and Windows app packages are installed into __pypackages__ inside app package asset zip.
• Packaging command is not looking for requirements.txt or pyproject.toml anymore, but all requirements should be passed explicitly via --requirements option. The value of --requirements option is passed "as is" to pip command. For example, --requirements flet,numpy==2.1.1 install two requirements directly, or --requirements -r,requirements.txt installs deps from a file.
• MacOS packaging includes Python binaries for both arm64 and x86_64 architectures. Can limit to only one architecture with --arch option.
• New options to enable compilation and cleanup of app and packages .py files: --compile-app, --compile-packages and --cleanup.
• Packaging for web is no longer relied on a HTML document with links, but spawns its own PyPI-compatible server with links to Pyodide packages.
• Build python distributive is cached in Flutter's build directory, not temp, to avoid re-downloading on consequent re-packages.
• Web builds updated to Pyodide 0.26.2.
• Packages for iOS and Android are built with Mobile Forge.
• Python for all platforms is built with flet-dev/python-build and this CI job. Python distros for Dart and Mobile Forge uploaded to releases.

0.7.1

• Added namespace definition to Android Gradle build.
• Bump dependencies.

0.7.0

• runPython() method to support running Python script.
• Updated flet_example to catch program output and errors, sys.exit() support.
• package command to read dependencies from pyproject.toml.

0.6.1

• --exclude option for package command - to exclude directories and files from Python app package.
• Re-create temp Python distributive directory on every run of package command.

0.6.0

• --verbose flag - verbose output.
• --mobile flag - (removes .so) from app dest archive.
• --web flag for packaging for pyodide.
• --find-links option for installing pip dependencies from alternative sources (indexes).
• --dep-mappings for rewriting flet dependency to either flet-embed or flet-pyodide.
• --req-deps for adding required dependencies like flet-embed or flet-pyodide.
• --platform option for use with sitecustomize.py to tweak pip to pull platform-specific packages.
• More structured regular output.
• Bump deps versions.

0.5.1

• Simplified Python initialization on Android.

0.5.0

• Python 3.11.6 for all platforms.

0.4.1

• Bumping version after fixing pubspec.yaml.

0.4.0

• macOS, Windows and Linux support.
• Support for custom Python libraries in Android and iOS apps.

0.3.1

• Set Flutter SDK requirements to remove publishing warnings.

0.3.0

• serious_python all-in-one package refactored to a federated plug-in with multiple endorsed packages.

0.2.4

• Fix _Py_HashRandomization_Init error on Windows.
• Reliably re-download Python executable.

0.2.3

• Android fixes to make it work on some devices when installed via Play Store.

0.2.2

• Exclude x86 from supported ABIs.
• Fixed: Packaging python app using the packaging command raising an error on windows (#8).

0.2.1

• Fix iOS pod.

0.2.0

• Android support.

0.1.5

• SeriousPython.run() should be split into two methods to return temp dir with unpacked python app (#6).

0.1.4

• Bump .podspec version.

0.1.3

• Add app's path to PYTHONPATH.
• Compile Python app to a bytecode.
• Compile Python system standard libraries to a bytecode.

0.1.2

• Package dist site-packages to a zip, so publishing to App Store doesn't fail.

0.1.1

• Fixed issue with setting current directory on Python start.
• Added --pre flag to serious_python:main CLI.
• Added Flet example.
• Hid internal implementation behind src dir.

0.1.0

• Initial release of serious_python with iOS support.