Jean-Pierre MartineauandClaude Opus 5 d062b5b706 The Windows console call that broke the app is ours alone ...

MeshTerm died building its screen on Windows with a ctypes type error, and on a
double-clicked build the traceback and the window it printed to were destroyed
together — which is why this needed a log file before it could be looked at.

`ctypes.windll.kernel32` is a cache. Every caller in the process receives the same
object and each function on it is a shared attribute, so declaring `.argtypes` is
not configuration, it is a process-wide mutation where the last writer wins. The
emoji-width probe declared `GetConsoleScreenBufferInfo` as taking a pointer to its
own copy of the screen-buffer struct; prompt_toolkit then called that same function
object with a pointer to its own copy — same layout, different class — and ctypes
refused it.

Nothing here reaches for `ctypes.windll` any more. Five call sites take private
handles from `core/win32dll.py`, built by constructing `WinDLL` directly so each
one gets its own function cache and a declaration made for one purpose cannot be
seen by anything else. Each call returns a fresh handle, because two parts of
MeshTerm disagreeing about a signature is the same bug in miniature.

The regression test was checked against the defect rather than assumed to cover
it: with the old line restored it fails, and with the fix it passes. A test that
passes either way would only have recorded that somebody thought about the
problem.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

2026-09-07 15:16:26 -04:00

..

tui

The Windows console call that broke the app is ours alone

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__init__.py

Rename project from MeshTools to MeshTerm

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about.py

The annotations, imports, and dead locals answer to ruff

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admin_picker.py

Every file is spelled the way the formatter spells it

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archived_screen.py

Every file is spelled the way the formatter spells it

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braillechart.py

Every file is spelled the way the formatter spells it

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channels.py

Every file is spelled the way the formatter spells it

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chat.py

Every file is spelled the way the formatter spells it

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config_editor.py

Every file is spelled the way the formatter spells it

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contactlist.py

Every file is spelled the way the formatter spells it

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contacts_screen.py

Every file is spelled the way the formatter spells it

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cooldown.py

Every file is spelled the way the formatter spells it

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courier_screen.py

Every file is spelled the way the formatter spells it

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dashboard_screen.py

Every file is spelled the way the formatter spells it

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device_info_screen.py

The annotations, imports, and dead locals answer to ruff

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device_picker.py

Every file is spelled the way the formatter spells it

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fontset.py

The tables that are a contract opt out of the formatter

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livefeed_screen.py

Every file is spelled the way the formatter spells it

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logo.py

Every line fits the hundred columns it was configured for

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map_render.py

Every file is spelled the way the formatter spells it

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map_screen.py

Every file is spelled the way the formatter spells it

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mapcanvas.py

Every file is spelled the way the formatter spells it

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markdown.py

Every file is spelled the way the formatter spells it

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marks.py

The annotations, imports, and dead locals answer to ruff

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menu.py

Every file is spelled the way the formatter spells it

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menus.py

Every file is spelled the way the formatter spells it

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message_paths_screen.py

Every file is spelled the way the formatter spells it

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minimap.py

The annotations, imports, and dead locals answer to ruff

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node_detail_screen.py

Every file is spelled the way the formatter spells it

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packet_viewer.py

Every file is spelled the way the formatter spells it

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path_composer.py

Every file is spelled the way the formatter spells it

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pathgraph.py

Every file is spelled the way the formatter spells it

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pathline.py

Every file is spelled the way the formatter spells it

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preferences.py

Every file is spelled the way the formatter spells it

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purge_screen.py

Every file is spelled the way the formatter spells it

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qr.py

The annotations, imports, and dead locals answer to ruff

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records_screen.py

Every file is spelled the way the formatter spells it

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remote_cli.py

Every file is spelled the way the formatter spells it

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repeater_admin.py

Every file is spelled the way the formatter spells it

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settings_offer.py

Splash: the wordmark states its own copyright, and blank is a space

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specimen.py

Every file is spelled the way the formatter spells it

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surface.py

Every file is spelled the way the formatter spells it

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termfont.py

The Windows console call that broke the app is ours alone

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theme.py

Every file is spelled the way the formatter spells it

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timemachine_screen.py

Every file is spelled the way the formatter spells it

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trace_screen.py

Every file is spelled the way the formatter spells it

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tx_screen.py

Every file is spelled the way the formatter spells it

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walk_screen.py

Every file is spelled the way the formatter spells it

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watchtower_screen.py

Every file is spelled the way the formatter spells it

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widgets.py

Every file is spelled the way the formatter spells it

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