Re-pin python-build to 20260719: desktop _pyrepl restored (pydoc/pdb import, #236)

Windows/Linux desktop apps on Python 3.14 crashed at startup with
ModuleNotFoundError: No module named '_pyrepl' when the app or a dependency
(e.g. NLTK) imports pydoc/pdb — 3.14's pydoc/pdb import _pyrepl at module
load, but it was pruned from the desktop stdlib as a dev-only module.

python-build 20260719 un-prunes _pyrepl on Windows/Linux (flet-dev/python-build#31);
iOS/macOS/Android already shipped it (4.3.2), so those runtimes are byte-identical
to 20260714. Folded into the not-yet-released 4.3.4.

Fixes #236

Author: FeodorFitsner

src/serious_python/CHANGELOG.md

@@ -1,7 +1,8 @@
 ## 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.
-* No runtime changes: bundled Python versions (**3.12.13 / 3.13.14 / 3.14.6**) and `dart_bridge` (**1.5.0**) are unchanged from 4.3.3.
 
 ## 4.3.3
 

src/serious_python/lib/src/python_versions.dart

@@ -1,5 +1,5 @@
 // GENERATED by `dart run serious_python:gen_version_tables` from python-build's
-// manifest.json (release 20260714). Do not edit by hand — edit python-build's
+// manifest.json (release 20260719). Do not edit by hand — edit python-build's
 // manifest.json, cut a release, bump `pythonReleaseDate`, and regenerate.
 
 const pythonVersionEnvironmentVariable = "SERIOUS_PYTHON_VERSION";
@@ -10,7 +10,7 @@ const pyodideVersionEnvironmentVariable = "SERIOUS_PYTHON_PYODIDE_VERSION";
 const dartBridgeVersionEnvironmentVariable = "DART_BRIDGE_VERSION";
 
 /// python-build release the bundled runtimes come from (YYYYMMDD).
-const pythonReleaseDate = "20260714";
+const pythonReleaseDate = "20260719";
 const dartBridgeVersion = "1.5.0";
 const defaultPythonVersion = "3.14";
 

src/serious_python_android/CHANGELOG.md

@@ -1,5 +1,6 @@
 ## 4.3.4
 
+* Re-pins the bundled python-build snapshot to **20260719** (previously 20260714). The snapshot un-prunes `_pyrepl` on Windows/Linux desktop only; Android already shipped `_pyrepl` (un-pruned in 4.3.2), so these runtimes are byte-identical to 20260714.
 * **Android:** fix code edits not taking effect under `flet debug android` — the app kept running the previously-unpacked, stale code after a re-run ([flet-dev/flet#6682](https://github.com/flet-dev/flet/issues/6682)). `prepareApp` copies the app payload out of the APK only when its cache key changes, and the key was `versionName+versionCode`. Since `flet debug` reinstalls the same-version APK on each iteration (`flutter run` does an update install that preserves app data, including the cache marker), the key never changed and re-extraction was skipped. The key now also includes `PackageManager.lastUpdateTime`, which is bumped on every (re)install but stays stable across plain relaunches — so a debug reinstall re-extracts the new code while ordinary relaunches still hit the cache. `flet build apk` was unaffected (fresh/version-bumped install).
 
 ## 4.3.3

src/serious_python_android/android/python_versions.properties

@@ -1,8 +1,8 @@
 # GENERATED by `dart run serious_python:gen_version_tables` from
-# python-build manifest.json (release 20260714). Do not edit by hand.
+# python-build manifest.json (release 20260719). Do not edit by hand.
 default_python_version=3.14
 dart_bridge_version=1.5.0
-python_build_release_date=20260714
+python_build_release_date=20260719
 3.12.full_version=3.12.13
 3.12.android_abis=arm64-v8a,x86_64,armeabi-v7a
 3.13.full_version=3.13.14

src/serious_python_darwin/CHANGELOG.md

@@ -1,6 +1,6 @@
 ## 4.3.4
 
-* Version bump aligning with the `serious_python_*` 4.3.4 release (an Android `flet debug` cache fix). No iOS/macOS-affecting changes.
+* Re-pins the bundled python-build snapshot to **20260719** (previously 20260714). The snapshot un-prunes `_pyrepl` on Windows/Linux desktop (fixing a 3.14 `pydoc`/`pdb` crash — see `serious_python_windows` / `serious_python_linux` 4.3.4); iOS/macOS already shipped `_pyrepl` (un-pruned in 4.3.2), so these runtimes are byte-identical to 20260714. No iOS/macOS-affecting changes.
 
 ## 4.3.3
 

src/serious_python_darwin/darwin/python_versions.properties

@@ -1,8 +1,8 @@
 # GENERATED by `dart run serious_python:gen_version_tables` from
-# python-build manifest.json (release 20260714). Do not edit by hand.
+# python-build manifest.json (release 20260719). Do not edit by hand.
 default_python_version=3.14
 dart_bridge_version=1.5.0
-python_build_release_date=20260714
+python_build_release_date=20260719
 3.12.full_version=3.12.13
 3.12.android_abis=arm64-v8a,x86_64,armeabi-v7a
 3.13.full_version=3.13.14

src/serious_python_linux/CHANGELOG.md

@@ -1,6 +1,6 @@
 ## 4.3.4
 
-* Version bump aligning with the `serious_python_*` 4.3.4 release (an Android `flet debug` cache fix). No Linux-affecting changes.
+* **Fix `ModuleNotFoundError: No module named '_pyrepl'` on Python 3.14.** `_pyrepl` was pruned from the bundled Linux stdlib as a dev-only / interactive-REPL module, but CPython 3.14's `pydoc` (and `pdb`) import it at module load — so any app importing `pydoc`/`pdb`/`pytest`, or a dependency that does (e.g. NLTK → `pydoc`), crashed at startup. `_pyrepl` is no longer pruned. Re-pins the bundled python-build snapshot to **20260719** (previously 20260714). ([flet-dev/serious-python#236](https://github.com/flet-dev/serious-python/issues/236))
 
 ## 4.3.3
 

src/serious_python_linux/linux/python_versions.properties

@@ -1,8 +1,8 @@
 # GENERATED by `dart run serious_python:gen_version_tables` from
-# python-build manifest.json (release 20260714). Do not edit by hand.
+# python-build manifest.json (release 20260719). Do not edit by hand.
 default_python_version=3.14
 dart_bridge_version=1.5.0
-python_build_release_date=20260714
+python_build_release_date=20260719
 3.12.full_version=3.12.13
 3.12.android_abis=arm64-v8a,x86_64,armeabi-v7a
 3.13.full_version=3.13.14

src/serious_python_platform_interface/CHANGELOG.md

@@ -1,6 +1,6 @@
 ## 4.3.4
 
-* Version bump aligning with the `serious_python_*` 4.3.4 release (an Android `flet debug` cache fix).
+* Version bump aligning with the `serious_python_*` 4.3.4 release (desktop `_pyrepl` fix + Android `flet debug` cache fix). No interface changes.
 
 ## 4.3.3
 

src/serious_python_windows/CHANGELOG.md

@@ -1,6 +1,6 @@
 ## 4.3.4
 
-* Version bump aligning with the `serious_python_*` 4.3.4 release (an Android `flet debug` cache fix). No Windows-affecting changes.
+* **Fix `ModuleNotFoundError: No module named '_pyrepl'` on Python 3.14.** `_pyrepl` was pruned from the bundled Windows stdlib as a dev-only / interactive-REPL module, but CPython 3.14's `pydoc` (and `pdb`) import it at module load — so any app importing `pydoc`/`pdb`/`pytest`, or a dependency that does (e.g. NLTK → `pydoc`), crashed at startup. `_pyrepl` is no longer pruned. Re-pins the bundled python-build snapshot to **20260719** (previously 20260714). ([flet-dev/serious-python#236](https://github.com/flet-dev/serious-python/issues/236))
 
 ## 4.3.3