codebase: add encoding='utf-8' to all bare open() calls (PLW1514)

Closes the last Python-on-Windows UTF-8 exposure by making every
text-mode open() call explicit about its encoding.

Before: on Windows, bare open(path, 'r') defaults to the system
locale encoding (cp1252 on US-locale installs).  That means reading
any config/yaml/markdown/json file with non-ASCII content either
crashes with UnicodeDecodeError or silently mis-decodes bytes.

After: all 89 affected call sites in production code now pass
encoding='utf-8' explicitly.  Works identically on every platform
and every locale, no surprise behavior.

Mechanical sweep via:
  ruff check --preview --extend-select PLW1514 --unsafe-fixes --fix     --exclude 'tests,venv,.venv,node_modules,website,optional-skills,               skills,tinker-atropos,plugins' .

All 89 fixes have the same shape: open(x) or open(x, mode) became
open(x, encoding='utf-8') or open(x, mode, encoding='utf-8').  Nothing
else changed.  Every modified file still parses and the Windows/sandbox
test suite is still green (85 passed, 14 skipped, 0 failed across
tests/tools/test_code_execution_windows_env.py +
tests/tools/test_code_execution_modes.py + tests/tools/test_env_passthrough.py +
tests/test_hermes_bootstrap.py).

Scope notes:
  - tests/ excluded: test fixtures can use locale encoding intentionally
    (exercising edge cases).  If we want to tighten tests later that's
    a separate PR.
  - plugins/ excluded: plugin-specific conventions may differ; plugin
    authors own their code.
  - optional-skills/ and skills/ excluded: skill scripts are user-authored
    and we don't want to mass-edit them.
  - website/ and tinker-atropos/ excluded: vendored / generated content.

46 files touched, 89 +/- lines (symmetric replacement).  No behavior
change on POSIX or on Windows when the file is ASCII; bug fix on
Windows when the file contains non-ASCII.
This commit is contained in:
Teknium 2026-05-07 19:24:45 -07:00
parent d94fb47717
commit cbce5e93fc
46 changed files with 89 additions and 89 deletions

View file

@ -598,7 +598,7 @@ def run_doctor(args):
# Detect stale root-level model keys (known bug source — PR #4329)
try:
import yaml
with open(config_path) as f:
with open(config_path, encoding="utf-8") as f:
raw_config = yaml.safe_load(f) or {}
stale_root_keys = [k for k in ("provider", "base_url") if k in raw_config and isinstance(raw_config[k], str)]
if stale_root_keys:
@ -1406,7 +1406,7 @@ def run_doctor(args):
import yaml as _yaml
_mem_cfg_path = HERMES_HOME / "config.yaml"
if _mem_cfg_path.exists():
with open(_mem_cfg_path) as _f:
with open(_mem_cfg_path, encoding="utf-8") as _f:
_raw_cfg = _yaml.safe_load(_f) or {}
_active_memory_provider = (_raw_cfg.get("memory") or {}).get("provider", "")
except Exception: