[libgpiod][PATCH v2 03/23] bindings: python: loosen type requirements in public API

[Vincent Fazio <vfazio@xxxxxxxxxxx>]

Previously, `Chip.request_lines` and `LineRequest.reconfigure_lines`
were typed to accept a config argument that was either an int, a str,
or a tuple[int | str].

This had two downsides, namely:
* The tuple was typed as having only a single element and not a variable
  number of elements. The examples and test suite relied on a variable
  length tuple.
* The tuple type itself was overly restictive. The function
  implementations had no requirement that the value be a tuple, only
  that it was iterable if it was not a str or an int.

Now, these functions accept an Iterable[int | str] instead of tuples to
offer greater flexibility to callers.

This change does not break compatibility for existing users.

Closes: https://github.com/brgl/libgpiod/issues/102
Signed-off-by: Vincent Fazio <vfazio@xxxxxxxxxxx>
---
 bindings/python/gpiod/chip.py         | 5 ++++-
 bindings/python/gpiod/line_request.py | 5 ++++-
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/bindings/python/gpiod/chip.py b/bindings/python/gpiod/chip.py
index 175fcb0..1db199e 100644
--- a/bindings/python/gpiod/chip.py
+++ b/bindings/python/gpiod/chip.py
@@ -13,6 +13,7 @@ from .line_request import LineRequest
 from .line_settings import LineSettings, _line_settings_to_ext
 
 if TYPE_CHECKING:
+    from collections.abc import Iterable
     from datetime import timedelta
 
     from .chip_info import ChipInfo
@@ -225,7 +226,9 @@ class Chip:
 
     def request_lines(
         self,
-        config: dict[tuple[Union[int, str]], Optional[LineSettings]],
+        config: dict[
+            Union[Iterable[Union[int, str]], int, str], Optional[LineSettings]
+        ],
         consumer: Optional[str] = None,
         event_buffer_size: Optional[int] = None,
         output_values: Optional[dict[Union[int, str], Value]] = None,
diff --git a/bindings/python/gpiod/line_request.py b/bindings/python/gpiod/line_request.py
index a8e4a87..c7b32f3 100644
--- a/bindings/python/gpiod/line_request.py
+++ b/bindings/python/gpiod/line_request.py
@@ -148,7 +148,10 @@ class LineRequest:
         self._req.set_values(mapped)
 
     def reconfigure_lines(
-        self, config: dict[tuple[Union[int, str]], LineSettings]
+        self,
+        config: dict[
+            Union[Iterable[Union[int, str]], int, str], Optional[LineSettings]
+        ],
     ) -> None:
         """
         Reconfigure requested lines.
-- 
2.34.1