Support system Python 3.9 without extra installs

.github/workflows/test.yml

@@ -13,6 +13,8 @@ jobs:
           - macos-latest
           - windows-latest
         python:
+          - "3.9"
+          - "3.10"
           - "3.11"
           - "3.13"
     runs-on: ${{ matrix.os }}

README.md

@@ -34,7 +34,7 @@ V1 supports text tasks only. It does not claim image, screenshot, video, or mult
 Requirements:
 
 - macOS or Windows
-- Python 3.11+
+- Python 3.9+ (no separate Python packages to install)
 - ChatGPT/Codex desktop app launched at least once
 - A DeepSeek API key
 
@@ -150,4 +150,4 @@ Codex DeepSeek Worker is an open-source developer tool maintained by [BeatAPI](h
 
 ## License
 
-This project is released under the [MIT License](LICENSE). It is an original work developed entirely from scratch by BeatAPI and contains no third-party code. See [THIRD_PARTY_NOTICES.md](THIRD_PARTY_NOTICES.md) for the full statement.
+This project is released under the [MIT License](LICENSE). It is maintained by BeatAPI and includes the MIT-licensed `tomli` compatibility parser for Python 3.9 and 3.10. See [THIRD_PARTY_NOTICES.md](THIRD_PARTY_NOTICES.md) for attribution.

THIRD_PARTY_NOTICES.md

@@ -1,5 +1,27 @@
 # Third-party notices
 
-This project (`codex-deepseek-worker`) is an original work developed entirely from scratch by BeatAPI. It contains no third-party code, no fork-derived code, and no vendored dependencies that require attribution under their own license terms.
+This project includes `tomli` 2.2.1 to provide TOML parsing on Python 3.9 and 3.10.
 
-If a future contribution introduces code from another project, add it here with its original copyright notice and license, as required by the upstream license.
+Source: https://github.com/hukkin/tomli
+
+MIT License
+
+Copyright (c) 2021 Taneli Hukkinen
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

codex-deepseek-worker/references/compatibility.md

@@ -3,7 +3,7 @@
 ## Supported V1 surface
 
 - macOS and Windows
-- Python 3.11+
+- Python 3.9+ with the bundled TOML compatibility parser
 - ChatGPT/Codex desktop app launched at least once
 - Official DeepSeek Responses-compatible endpoint used by Codex
 - `deepseek-v4-flash`
@@ -26,7 +26,7 @@ The manager does not change the top-level `model` or `model_provider`.
 
 ## Native routing
 
-The manager discovers the desktop app's bundled Codex runtime. On Windows it also checks common install locations and may use `CODEX_DESKTOP_BIN` when automatic discovery fails.
+On macOS, the manager discovers the desktop app's bundled Codex runtime from the standard app locations. It does not search `PATH` or trust environment-variable install roots. On Windows, the caller must pass the exact trusted desktop runtime path explicitly with `--codex-bin`; the manager never automatically executes a discovered file.
 
 The manager reads the active parent model, disables `features.multi_agent_v2`, and sets that parent model's catalog entry to `multi_agent_version = "v1"`. This is required by the currently validated cross-provider plaintext routing path. Run `repair` whenever the parent model changes.
 

codex-deepseek-worker/scripts/_vendor/tomli/__init__.py

@@ -0,0 +1,8 @@
+# SPDX-License-Identifier: MIT
+# SPDX-FileCopyrightText: 2021 Taneli Hukkinen
+# Licensed to PSF under a Contributor Agreement.
+
+__all__ = ("loads", "load", "TOMLDecodeError")
+__version__ = "2.2.1"  # DO NOT EDIT THIS LINE MANUALLY. LET bump2version UTILITY DO IT
+
+from ._parser import TOMLDecodeError, load, loads