fix(android): bundle every ABI's _sysconfigdata into the ABI-common stdlib.zip#218
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fix(android): bundle every ABI's _sysconfigdata into the ABI-common stdlib.zip#218FeodorFitsner wants to merge 2 commits into
FeodorFitsner wants to merge 2 commits into
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…tdlib.zip The pure stdlib.zip is built once from the primary ABI (abis.first(), e.g. arm64-v8a), but _sysconfigdata__<arch> is arch-specific: each ABI ships its own (e.g. _sysconfigdata__android_x86_64-linux-android) and CPython imports the one matching the running device at startup (sysconfig, pulled in by ctypes). So on a non-primary ABI (e.g. an x86_64 emulator) the embedded interpreter crashed with 'ModuleNotFoundError: No module named _sysconfigdata__android_x86_64-linux-android'. The primary splitStdlib task now also harvests every other ABI's stdlib/_sysconfigdata* from its libpythonbundle.so into stdlib.zip (depending on the other ABIs' untar and holding non-primary tasks until the primary has read their bundles).
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…anch Temporarily override serious_python_android + serious_python_platform_interface to flet-dev/serious-python#218 (fix/android-x86_64-sysconfigdata) so the android x86_64 CI leg validates the fix end-to-end (embedded Python no longer crashes with ModuleNotFoundError: _sysconfigdata__android_x86_64-linux-android). Locally confirmed: pubspec.lock resolves to the branch and stdlib.zip now ships both aarch64 and x86_64 _sysconfigdata. Revert to the pub.dev release once #218 ships.
…id dup) The previous harvest matched stdlib/_sysconfigdata*, which also catches the generic, ABI-identical _sysconfigdata__linux_ that some Python versions (e.g. 3.12) ship in every ABI. The primary ABI already adds that via the stdlib loop, so re-adding it from a non-primary ABI threw 'java.util.zip.ZipException: duplicate entry: _sysconfigdata__linux_.pyc'. Match only the per-ABI _sysconfigdata__android_<arch> modules (unique per ABI), which is exactly what CPython imports on-device. Add CHANGELOG entry (4.1.1).
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Problem
The pure
stdlib.zipis ABI-common and built once from the primary ABI (abis.first(), e.g.arm64-v8a). But_sysconfigdata__<arch>is arch-specific: each ABI ships its own (e.g._sysconfigdata__android_x86_64-linux-android), and CPython imports the one matching the running device at startup (sysconfig._init_posix, pulled in byctypes).So on a non-primary ABI (e.g. an x86_64 emulator when arm64-v8a is primary) the embedded interpreter crashes on startup:
This was caught by Flet's new on-device
flet testCI running on an x86_64 Android emulator (passes on arm64 devices/emulators, where the primary ABI's sysconfigdata happens to match).Fix
The primary
splitStdlibtask now also harvests every other ABI'sstdlib/_sysconfigdata*from itslibpythonbundle.sointostdlib.zip— depending on the other ABIs' untar so their bundles exist to read, and holding non-primary tasks until the primary has read them (each task deletes its own bundle at the end).Validation
A patched APK build's
stdlib.zipnow contains both_sysconfigdata__android_aarch64-linux-android.pycand_sysconfigdata__android_x86_64-linux-android.pyc(previously only the aarch64 one).