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GET /api/patches/2217496/?format=api
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{
    "id": 2217496,
    "url": "http://patchwork.ozlabs.org/api/patches/2217496/?format=api",
    "web_url": "http://patchwork.ozlabs.org/project/linux-gpio/patch/20260329182832.39824-1-vfazio@gmail.com/",
    "project": {
        "id": 42,
        "url": "http://patchwork.ozlabs.org/api/projects/42/?format=api",
        "name": "Linux GPIO development",
        "link_name": "linux-gpio",
        "list_id": "linux-gpio.vger.kernel.org",
        "list_email": "linux-gpio@vger.kernel.org",
        "web_url": "",
        "scm_url": "",
        "webscm_url": "",
        "list_archive_url": "",
        "list_archive_url_format": "",
        "commit_url_format": ""
    },
    "msgid": "<20260329182832.39824-1-vfazio@gmail.com>",
    "list_archive_url": null,
    "date": "2026-03-29T18:28:32",
    "name": "[libgpiod] bindings: python: drop python 3.9 support",
    "commit_ref": null,
    "pull_url": null,
    "state": "new",
    "archived": false,
    "hash": "ff6c99514a0e9ce27f6bd24aa1a3ba2c6f9e47e2",
    "submitter": {
        "id": 78694,
        "url": "http://patchwork.ozlabs.org/api/people/78694/?format=api",
        "name": "Vincent Fazio",
        "email": "vfazio@gmail.com"
    },
    "delegate": null,
    "mbox": "http://patchwork.ozlabs.org/project/linux-gpio/patch/20260329182832.39824-1-vfazio@gmail.com/mbox/",
    "series": [
        {
            "id": 497935,
            "url": "http://patchwork.ozlabs.org/api/series/497935/?format=api",
            "web_url": "http://patchwork.ozlabs.org/project/linux-gpio/list/?series=497935",
            "date": "2026-03-29T18:28:32",
            "name": "[libgpiod] bindings: python: drop python 3.9 support",
            "version": 1,
            "mbox": "http://patchwork.ozlabs.org/series/497935/mbox/"
        }
    ],
    "comments": "http://patchwork.ozlabs.org/api/patches/2217496/comments/",
    "check": "pending",
    "checks": "http://patchwork.ozlabs.org/api/patches/2217496/checks/",
    "tags": {},
    "related": [],
    "headers": {
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        "From": "Vincent Fazio <vfazio@gmail.com>",
        "To": "linux-gpio@vger.kernel.org",
        "Cc": "Vincent Fazio <vfazio@gmail.com>",
        "Subject": "[libgpiod][PATCH] bindings: python: drop python 3.9 support",
        "Date": "Sun, 29 Mar 2026 13:28:32 -0500",
        "Message-ID": "<20260329182832.39824-1-vfazio@gmail.com>",
        "X-Mailer": "git-send-email 2.43.0",
        "Precedence": "bulk",
        "X-Mailing-List": "linux-gpio@vger.kernel.org",
        "List-Id": "<linux-gpio.vger.kernel.org>",
        "List-Subscribe": "<mailto:linux-gpio+subscribe@vger.kernel.org>",
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        "MIME-Version": "1.0",
        "Content-Transfer-Encoding": "8bit"
    },
    "content": "* Update pyproject.toml to require Python 3.10+ for runtime\n* Update mypy's target version to 3.10 syntax\n* Drop ruff's target version as it's inferred by the project's\n  requires-python value\n* Remove the linter settings that ignored UP007 & UP0045\n* Update type annotations to conform to active linter rules\n\nCloses: https://github.com/brgl/libgpiod/issues/151\nSigned-off-by: Vincent Fazio <vfazio@gmail.com>\n---\n bindings/python/gpiod/__init__.py         |  9 +++---\n bindings/python/gpiod/_ext.pyi            | 10 +++----\n bindings/python/gpiod/_internal.py        | 10 +++----\n bindings/python/gpiod/chip.py             | 36 ++++++++++-------------\n bindings/python/gpiod/line_request.py     | 36 ++++++++++-------------\n bindings/python/pyproject.toml            | 10 ++-----\n bindings/python/tests/gpiosim/chip.py     |  9 +++---\n bindings/python/tests/helpers.py          |  8 ++---\n bindings/python/tests/tests_edge_event.py |  5 ++--\n bindings/python/tests/tests_info_event.py |  3 +-\n configure.ac                              |  2 +-\n 11 files changed, 59 insertions(+), 79 deletions(-)",
    "diff": "diff --git a/bindings/python/gpiod/__init__.py b/bindings/python/gpiod/__init__.py\nindex 854e41f..be1b6b0 100644\n--- a/bindings/python/gpiod/__init__.py\n+++ b/bindings/python/gpiod/__init__.py\n@@ -8,7 +8,6 @@ This module wraps the native C API of libgpiod in a set of python classes.\n \"\"\"\n \n from collections.abc import Iterable\n-from typing import Optional, Union\n \n from . import (\n     _ext,\n@@ -87,10 +86,10 @@ def is_gpiochip_device(path: str) -> bool:\n \n def request_lines(\n     path: str,\n-    config: dict[Union[Iterable[Union[int, str]], int, str], Optional[LineSettings]],\n-    consumer: Optional[str] = None,\n-    event_buffer_size: Optional[int] = None,\n-    output_values: Optional[dict[Union[int, str], line.Value]] = None,\n+    config: dict[Iterable[int | str] | int | str, LineSettings | None],\n+    consumer: str | None = None,\n+    event_buffer_size: int | None = None,\n+    output_values: dict[int | str, line.Value] | None = None,\n ) -> LineRequest:\n     \"\"\"\n     Open a GPIO chip pointed to by 'path', request lines according to the\ndiff --git a/bindings/python/gpiod/_ext.pyi b/bindings/python/gpiod/_ext.pyi\nindex 31fd352..873c23f 100644\n--- a/bindings/python/gpiod/_ext.pyi\n+++ b/bindings/python/gpiod/_ext.pyi\n@@ -1,8 +1,6 @@\n # SPDX-License-Identifier: LGPL-2.1-or-later\n # SPDX-FileCopyrightText: 2024 Vincent Fazio <vfazio@gmail.com>\n \n-from typing import Optional\n-\n from .chip_info import ChipInfo\n from .edge_event import EdgeEvent\n from .info_event import InfoEvent\n@@ -32,7 +30,7 @@ class Request:\n     def get_values(self, offsets: list[int], values: list[Value]) -> None: ...\n     def set_values(self, values: dict[int, Value]) -> None: ...\n     def reconfigure_lines(self, line_cfg: LineConfig) -> None: ...\n-    def read_edge_events(self, max_events: Optional[int]) -> list[EdgeEvent]: ...\n+    def read_edge_events(self, max_events: int | None) -> list[EdgeEvent]: ...\n     @property\n     def chip_name(self) -> str: ...\n     @property\n@@ -47,12 +45,12 @@ class Chip:\n     def get_info(self) -> ChipInfo: ...\n     def line_offset_from_id(self, id: str) -> int: ...\n     def get_line_info(self, offset: int, watch: bool) -> LineInfo: ...\n-    def get_line_name(self, offset: int) -> Optional[str]: ...\n+    def get_line_name(self, offset: int) -> str | None: ...\n     def request_lines(\n         self,\n         line_cfg: LineConfig,\n-        consumer: Optional[str],\n-        event_buffer_size: Optional[int],\n+        consumer: str | None,\n+        event_buffer_size: int | None,\n     ) -> Request: ...\n     def read_info_event(self) -> InfoEvent: ...\n     def close(self) -> None: ...\ndiff --git a/bindings/python/gpiod/_internal.py b/bindings/python/gpiod/_internal.py\nindex ee15796..b81f970 100644\n--- a/bindings/python/gpiod/_internal.py\n+++ b/bindings/python/gpiod/_internal.py\n@@ -5,7 +5,7 @@ from __future__ import annotations\n \n from datetime import timedelta\n from select import select\n-from typing import TYPE_CHECKING, Optional, Union\n+from typing import TYPE_CHECKING\n \n if TYPE_CHECKING:\n     from collections.abc import Generator, Iterable\n@@ -15,8 +15,8 @@ if TYPE_CHECKING:\n __all__ = [\"poll_fd\", \"config_iter\"]\n \n \n-def poll_fd(fd: int, timeout: Optional[Union[timedelta, float]] = None) -> bool:\n-    sec: Union[float, None]\n+def poll_fd(fd: int, timeout: timedelta | float | None = None) -> bool:\n+    sec: float | None\n     if isinstance(timeout, timedelta):\n         sec = timeout.total_seconds()\n     else:\n@@ -27,8 +27,8 @@ def poll_fd(fd: int, timeout: Optional[Union[timedelta, float]] = None) -> bool:\n \n \n def config_iter(\n-    config: dict[Union[Iterable[Union[int, str]], int, str], Optional[LineSettings]],\n-) -> Generator[tuple[Union[int, str], Optional[LineSettings]]]:\n+    config: dict[Iterable[int | str] | int | str, LineSettings | None],\n+) -> Generator[tuple[int | str, LineSettings | None]]:\n     for key, settings in config.items():\n         if isinstance(key, int) or isinstance(key, str):\n             yield key, settings\ndiff --git a/bindings/python/gpiod/chip.py b/bindings/python/gpiod/chip.py\nindex a98fce6..8113fa9 100644\n--- a/bindings/python/gpiod/chip.py\n+++ b/bindings/python/gpiod/chip.py\n@@ -4,7 +4,7 @@\n from __future__ import annotations\n \n from errno import ENOENT\n-from typing import TYPE_CHECKING, Optional, Union, cast\n+from typing import TYPE_CHECKING, cast\n \n from . import _ext\n from ._internal import config_iter, poll_fd\n@@ -60,8 +60,8 @@ class Chip:\n           path:\n             Path to the GPIO character device file.\n         \"\"\"\n-        self._chip: Union[_ext.Chip, None] = _ext.Chip(path)\n-        self._info: Union[ChipInfo, None] = None\n+        self._chip: _ext.Chip | None = _ext.Chip(path)\n+        self._info: ChipInfo | None = None\n \n     def __bool__(self) -> bool:\n         \"\"\"\n@@ -81,9 +81,9 @@ class Chip:\n \n     def __exit__(\n         self,\n-        exc_type: Optional[type[BaseException]],\n-        exc_value: Optional[BaseException],\n-        traceback: Optional[TracebackType],\n+        exc_type: type[BaseException] | None,\n+        exc_value: BaseException | None,\n+        traceback: TracebackType | None,\n     ) -> None:\n         \"\"\"\n         Controlled execution exit callback.\n@@ -117,7 +117,7 @@ class Chip:\n \n         return self._info\n \n-    def line_offset_from_id(self, id: Union[str, int]) -> int:\n+    def line_offset_from_id(self, id: str | int) -> int:\n         \"\"\"\n         Map a line's identifier to its offset within the chip.\n \n@@ -155,13 +155,13 @@ class Chip:\n \n         return offset\n \n-    def _get_line_info(self, line: Union[int, str], watch: bool) -> LineInfo:\n+    def _get_line_info(self, line: int | str, watch: bool) -> LineInfo:\n         self._check_closed()\n         return cast(\"_ext.Chip\", self._chip).get_line_info(\n             self.line_offset_from_id(line), watch\n         )\n \n-    def get_line_info(self, line: Union[int, str]) -> LineInfo:\n+    def get_line_info(self, line: int | str) -> LineInfo:\n         \"\"\"\n         Get the snapshot of information about the line at given offset.\n \n@@ -174,7 +174,7 @@ class Chip:\n         \"\"\"\n         return self._get_line_info(line, watch=False)\n \n-    def watch_line_info(self, line: Union[int, str]) -> LineInfo:\n+    def watch_line_info(self, line: int | str) -> LineInfo:\n         \"\"\"\n         Get the snapshot of information about the line at given offset and\n         start watching it for future changes.\n@@ -188,7 +188,7 @@ class Chip:\n         \"\"\"\n         return self._get_line_info(line, watch=True)\n \n-    def unwatch_line_info(self, line: Union[int, str]) -> None:\n+    def unwatch_line_info(self, line: int | str) -> None:\n         \"\"\"\n         Stop watching a line for status changes.\n \n@@ -201,9 +201,7 @@ class Chip:\n             self.line_offset_from_id(line)\n         )\n \n-    def wait_info_event(\n-        self, timeout: Optional[Union[timedelta, float]] = None\n-    ) -> bool:\n+    def wait_info_event(self, timeout: timedelta | float | None = None) -> bool:\n         \"\"\"\n         Wait for line status change events on any of the watched lines on the\n         chip.\n@@ -237,12 +235,10 @@ class Chip:\n \n     def request_lines(\n         self,\n-        config: dict[\n-            Union[Iterable[Union[int, str]], int, str], Optional[LineSettings]\n-        ],\n-        consumer: Optional[str] = None,\n-        event_buffer_size: Optional[int] = None,\n-        output_values: Optional[dict[Union[int, str], Value]] = None,\n+        config: dict[Iterable[int | str] | int | str, LineSettings | None],\n+        consumer: str | None = None,\n+        event_buffer_size: int | None = None,\n+        output_values: dict[int | str, Value] | None = None,\n     ) -> LineRequest:\n         \"\"\"\n         Request a set of lines for exclusive usage.\ndiff --git a/bindings/python/gpiod/line_request.py b/bindings/python/gpiod/line_request.py\nindex deb48a7..0287791 100644\n--- a/bindings/python/gpiod/line_request.py\n+++ b/bindings/python/gpiod/line_request.py\n@@ -4,7 +4,7 @@\n from __future__ import annotations\n \n import warnings\n-from typing import TYPE_CHECKING, Optional, Union, cast\n+from typing import TYPE_CHECKING, cast\n \n from . import _ext\n from ._internal import config_iter, poll_fd\n@@ -33,11 +33,11 @@ class LineRequest:\n         Note: LineRequest objects can only be instantiated by a Chip parent.\n         LineRequest.__init__() is not part of stable API.\n         \"\"\"\n-        self._req: Union[_ext.Request, None] = req\n+        self._req: _ext.Request | None = req\n         self._chip_name: str\n         self._offsets: list[int]\n         self._name_map: dict[str, int]\n-        self._lines: list[Union[int, str]]\n+        self._lines: list[int | str]\n \n     def __bool__(self) -> bool:\n         \"\"\"\n@@ -57,9 +57,9 @@ class LineRequest:\n \n     def __exit__(\n         self,\n-        exc_type: Optional[type[BaseException]],\n-        exc_value: Optional[BaseException],\n-        traceback: Optional[TracebackType],\n+        exc_type: type[BaseException] | None,\n+        exc_value: BaseException | None,\n+        traceback: TracebackType | None,\n     ) -> None:\n         \"\"\"\n         Controlled execution exit callback.\n@@ -79,7 +79,7 @@ class LineRequest:\n         cast(\"_ext.Request\", self._req).release()\n         self._req = None\n \n-    def get_value(self, line: Union[int, str]) -> Value:\n+    def get_value(self, line: int | str) -> Value:\n         \"\"\"\n         Get a single GPIO line value.\n \n@@ -92,16 +92,14 @@ class LineRequest:\n         \"\"\"\n         return self.get_values([line])[0]\n \n-    def _line_to_offset(self, line: Union[int, str]) -> int:\n+    def _line_to_offset(self, line: int | str) -> int:\n         if isinstance(line, int):\n             return line\n         if (_line := self._name_map.get(line)) is None:\n             raise ValueError(f\"unknown line name: {line}\")\n         return _line\n \n-    def get_values(\n-        self, lines: Optional[Iterable[Union[int, str]]] = None\n-    ) -> list[Value]:\n+    def get_values(self, lines: Iterable[int | str] | None = None) -> list[Value]:\n         \"\"\"\n         Get values of a set of GPIO lines.\n \n@@ -124,7 +122,7 @@ class LineRequest:\n         cast(\"_ext.Request\", self._req).get_values(offsets, buf)\n         return buf\n \n-    def set_value(self, line: Union[int, str], value: Value) -> None:\n+    def set_value(self, line: int | str, value: Value) -> None:\n         \"\"\"\n         Set the value of a single GPIO line.\n \n@@ -136,7 +134,7 @@ class LineRequest:\n         \"\"\"\n         self.set_values({line: value})\n \n-    def set_values(self, values: dict[Union[int, str], Value]) -> None:\n+    def set_values(self, values: dict[int | str, Value]) -> None:\n         \"\"\"\n         Set the values of a subset of GPIO lines.\n \n@@ -152,9 +150,7 @@ class LineRequest:\n \n     def reconfigure_lines(\n         self,\n-        config: dict[\n-            Union[Iterable[Union[int, str]], int, str], Optional[LineSettings]\n-        ],\n+        config: dict[Iterable[int | str] | int | str, LineSettings | None],\n     ) -> None:\n         \"\"\"\n         Reconfigure requested lines.\n@@ -196,9 +192,7 @@ class LineRequest:\n \n         cast(\"_ext.Request\", self._req).reconfigure_lines(line_cfg)\n \n-    def wait_edge_events(\n-        self, timeout: Optional[Union[timedelta, float]] = None\n-    ) -> bool:\n+    def wait_edge_events(self, timeout: timedelta | float | None = None) -> bool:\n         \"\"\"\n         Wait for edge events on any of the requested lines.\n \n@@ -215,7 +209,7 @@ class LineRequest:\n \n         return poll_fd(self.fd, timeout)\n \n-    def read_edge_events(self, max_events: Optional[int] = None) -> list[EdgeEvent]:\n+    def read_edge_events(self, max_events: int | None = None) -> list[EdgeEvent]:\n         \"\"\"\n         Read a number of edge events from a line request.\n \n@@ -271,7 +265,7 @@ class LineRequest:\n         return self._offsets\n \n     @property\n-    def lines(self) -> list[Union[int, str]]:\n+    def lines(self) -> list[int | str]:\n         \"\"\"\n         List of requested lines. Lines requested by name are listed as such.\n         \"\"\"\ndiff --git a/bindings/python/pyproject.toml b/bindings/python/pyproject.toml\nindex 1c3549c..d919b88 100644\n--- a/bindings/python/pyproject.toml\n+++ b/bindings/python/pyproject.toml\n@@ -11,7 +11,7 @@ dynamic = [\"version\"]\n description = \"Python bindings for libgpiod\"\n readme = \"README.md\"\n license = \"LGPL-2.1-or-later\"\n-requires-python = \">=3.9.0\"\n+requires-python = \">=3.10\"\n authors = [\n   {name = \"Bartosz Golaszewski\", email = \"brgl@bgdev.pl\"},\n ]\n@@ -22,7 +22,6 @@ classifiers = [\n   \"Programming Language :: Python\",\n   \"Programming Language :: Python :: 3\",\n   \"Programming Language :: Python :: 3 :: Only\",\n-  \"Programming Language :: Python :: 3.9\",\n   \"Programming Language :: Python :: 3.10\",\n   \"Programming Language :: Python :: 3.11\",\n   \"Programming Language :: Python :: 3.12\",\n@@ -46,7 +45,7 @@ include = [\"gpiod\"]\n namespaces = false\n \n [tool.mypy]\n-python_version = \"3.9\"\n+python_version = \"3.10\"\n files = [\n   \"gpiod/\",\n   \"tests/\",\n@@ -57,7 +56,7 @@ module = \"gpiod.line.*\"\n strict_equality = false # Ignore Enum comparison-overlap: https://github.com/python/mypy/issues/17317\n \n [tool.ruff]\n-target-version = \"py39\"\n+target-version = \"py310\"\n include = [\n   \"gpiod/**/*.py\",\n   \"gpiod/**/*.pyi\",\n@@ -72,9 +71,6 @@ ignore=[\n   \"B904\",\n   # Never enforce line length violations. Let the formatter handle it: https://docs.astral.sh/ruff/formatter/#conflicting-lint-rules\n   \"E501\",\n-  # Ignore new Union (|) syntax until we require 3.10+\n-  \"UP007\",\n-  \"UP045\",\n ]\n \n [tool.ruff.lint.per-file-ignores]\ndiff --git a/bindings/python/tests/gpiosim/chip.py b/bindings/python/tests/gpiosim/chip.py\nindex 691bfe1..7fd0042 100644\n--- a/bindings/python/tests/gpiosim/chip.py\n+++ b/bindings/python/tests/gpiosim/chip.py\n@@ -2,7 +2,6 @@\n # SPDX-FileCopyrightText: 2022 Bartosz Golaszewski <brgl@bgdev.pl>\n \n from enum import Enum\n-from typing import Optional\n \n from . import _ext\n \n@@ -27,10 +26,10 @@ class Chip:\n \n     def __init__(\n         self,\n-        label: Optional[str] = None,\n-        num_lines: Optional[int] = None,\n-        line_names: Optional[dict[int, str]] = None,\n-        hogs: Optional[dict[int, tuple[str, Direction]]] = None,\n+        label: str | None = None,\n+        num_lines: int | None = None,\n+        line_names: dict[int, str] | None = None,\n+        hogs: dict[int, tuple[str, Direction]] | None = None,\n     ):\n         self._chip = _ext.Chip()\n \ndiff --git a/bindings/python/tests/helpers.py b/bindings/python/tests/helpers.py\nindex ad272a1..4abd8b2 100644\n--- a/bindings/python/tests/helpers.py\n+++ b/bindings/python/tests/helpers.py\n@@ -4,7 +4,7 @@\n from __future__ import annotations\n \n import os\n-from typing import TYPE_CHECKING, Optional\n+from typing import TYPE_CHECKING\n \n if TYPE_CHECKING:\n     from types import TracebackType\n@@ -20,8 +20,8 @@ class LinkGuard:\n \n     def __exit__(\n         self,\n-        type: Optional[type[BaseException]],\n-        val: Optional[BaseException],\n-        tb: Optional[TracebackType],\n+        type: type[BaseException] | None,\n+        val: BaseException | None,\n+        tb: TracebackType | None,\n     ) -> None:\n         os.unlink(self.dst)\ndiff --git a/bindings/python/tests/tests_edge_event.py b/bindings/python/tests/tests_edge_event.py\nindex bf1685c..4efed2a 100644\n--- a/bindings/python/tests/tests_edge_event.py\n+++ b/bindings/python/tests/tests_edge_event.py\n@@ -6,7 +6,6 @@ from datetime import timedelta\n from functools import partial\n from select import select\n from threading import Thread\n-from typing import Optional\n from unittest import TestCase\n \n import gpiod\n@@ -56,7 +55,7 @@ class EdgeEventInvalidConfig(TestCase):\n class WaitingForEdgeEvents(TestCase):\n     def setUp(self) -> None:\n         self.sim = gpiosim.Chip(num_lines=8)\n-        self.thread: Optional[Thread] = None\n+        self.thread: Thread | None = None\n \n     def tearDown(self) -> None:\n         if self.thread:\n@@ -208,7 +207,7 @@ class PollLineRequestObject(TestCase):\n         self.request = gpiod.request_lines(\n             self.sim.dev_path, {2: gpiod.LineSettings(edge_detection=Edge.BOTH)}\n         )\n-        self.thread: Optional[Thread] = None\n+        self.thread: Thread | None = None\n \n     def tearDown(self) -> None:\n         if self.thread:\ndiff --git a/bindings/python/tests/tests_info_event.py b/bindings/python/tests/tests_info_event.py\nindex 31dc952..e32ef19 100644\n--- a/bindings/python/tests/tests_info_event.py\n+++ b/bindings/python/tests/tests_info_event.py\n@@ -8,7 +8,6 @@ import time\n from dataclasses import FrozenInstanceError\n from functools import partial\n from select import select\n-from typing import Optional\n from unittest import TestCase\n \n import gpiod\n@@ -53,7 +52,7 @@ class WatchingInfoEventWorks(TestCase):\n     def setUp(self) -> None:\n         self.sim = gpiosim.Chip(num_lines=8, line_names={4: \"foobar\"})\n         self.chip = gpiod.Chip(self.sim.dev_path)\n-        self.thread: Optional[threading.Thread] = None\n+        self.thread: threading.Thread | None = None\n \n     def tearDown(self) -> None:\n         if self.thread:\ndiff --git a/configure.ac b/configure.ac\nindex 61a010f..c1bae2a 100644\n--- a/configure.ac\n+++ b/configure.ac\n@@ -234,7 +234,7 @@ AM_CONDITIONAL([WITH_BINDINGS_PYTHON], [test \"x$with_bindings_python\" = xtrue])\n \n if test \"x$with_bindings_python\" = xtrue\n then\n-\tAM_PATH_PYTHON([3.9], [],\n+\tAM_PATH_PYTHON([3.10], [],\n \t\t[AC_MSG_ERROR([python3 not found - needed for python bindings])])\n fi\n \n",
    "prefixes": [
        "libgpiod"
    ]
}