Chuck 1f0de9b354 fix(starlark): fix Python 3.13 importlib.reload() incompatibility (#258) ...

* fix(starlark): fix Python 3.13 importlib.reload() incompatibility

In Python 3.13, importlib.reload() raises ModuleNotFoundError for modules
loaded via spec_from_file_location when they aren't on sys.path, because
_bootstrap._find_spec() can no longer resolve them by name.

Replace the reload-on-cache-hit pattern in _get_tronbyte_repository_class()
and _get_pixlet_renderer_class() with a simple return of the cached class —
the reload was only useful for dev-time iteration and is unnecessary in
production (the service restarts clean on each deploy).

Also broaden the exception catch in upload_starlark_app() from
(ValueError, OSError, IOError) to Exception so that any unexpected error
(ImportError, ModuleNotFoundError, etc.) returns a proper JSON response
instead of an unhandled Flask 500.

Fixes: "Install failed: spec not found for the module 'tronbyte_repository'"

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* fix(starlark): use targeted exception handlers in upload_starlark_app()

Replace the broad `except Exception` catch-all with specific handlers:
- (OSError, IOError) for temp file creation/save failures
- ImportError for module loading failures (_get_pixlet_renderer_class)
- Exception as final catch-all that logs without leaking internals

All handlers use `err` (not unused `e`) in both the log message and
the JSON response body.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

---------

Co-authored-by: Chuck <chuck@example.com>
Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>

2026-02-23 16:37:48 -05:00

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