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Krzysztof kuhy Rudnicki
6154dc09bf
The three Python packages pinned ruff twice at different versions: requirements.txt at 0.16.7, .pre-commit-config.yaml at v0.15.2. Only the older one ever ran, so `select = ["ALL"]` was enforced two minor versions behind. Measured before aligning: v0.15.2 reports 0 findings, every 0.16.x reports CPY001 on each file -- 70 crdt-sync, 23 freedays, 71 gatelock, and no other rule. Resolved by adding the notice rather than ignoring the rule, so the gate keeps its teeth. Two gatelock modules sat at exactly the 250-line cap, so a one-line header tipped them to 251. Both are split along a real seam rather than shaved: _widget_fills.py colour arithmetic over LockConfig, no tkinter import _surfaces_focus.py selects among existing surfaces, never mutates them The focus split keeps _surfaces.py's documented containment (it stays the only module that creates, moves or destroys windows), and the static guard in test_recovery_invariants.py globs _surfaces*.py, so the new sibling is covered with no list to extend. widgets.py re-exports the fills helpers, which keeps gatelock.widgets the single public surface its tests import. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_019kMvSMtsVMB3d2uoZ56pbp
38 lines
1.2 KiB
Python
38 lines
1.2 KiB
Python
# Copyright (c) 2026 Krzysztof Rudnicki
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"""Safe Tk root window that never lets a callback exception escape."""
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from __future__ import annotations
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import logging
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import tkinter as tk
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from typing import TYPE_CHECKING
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if TYPE_CHECKING:
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from collections.abc import Callable
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from types import TracebackType
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_logger = logging.getLogger(__name__)
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class GateRoot(tk.Tk):
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"""Tk root that routes callback errors to a handler instead of crashing.
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Overriding ``report_callback_exception`` is the idiomatic, blind-except-free
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way to guarantee that no exception raised inside a Tk callback escapes the
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event loop -- essential while a global input grab is held, since a crashed
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mainloop would leave the screen grabbed with no way to release it.
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"""
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on_callback_error: Callable[[], None] | None = None
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def report_callback_exception(
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self,
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exc: type[BaseException],
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val: BaseException,
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tb: TracebackType | None,
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) -> None:
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"""Log a callback error and notify the handler; never re-raise."""
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_logger.error("gatelock callback error", exc_info=(exc, val, tb))
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if self.on_callback_error is not None:
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self.on_callback_error()
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