bindings: python: make internal a private submodule

The internal submodule shouldn't be exposed as part of the public
interface, so mark it private following PEP 8 convention [0].

[0]: https://peps.python.org/pep-0008/#public-and-internal-interfaces

Signed-off-by: Vincent Fazio <vfazio@xes-inc.com>
Link: https://lore.kernel.org/r/20241114145116.2123714-3-vfazio@xes-inc.com
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

bindings/python/gpiod/chip.py

@@ -6,8 +6,8 @@ from errno import ENOENT
 from typing import TYPE_CHECKING, Optional, Union
 
 from . import _ext
+from ._internal import poll_fd
 from .exception import ChipClosedError
-from .internal import poll_fd
 from .line import Value
 from .line_request import LineRequest
 from .line_settings import LineSettings, _line_settings_to_ext

bindings/python/gpiod/line_request.py

@@ -4,9 +4,8 @@
 from typing import TYPE_CHECKING, Optional, Union
 
 from . import _ext
-
+from ._internal import poll_fd
 from .exception import RequestReleasedError
-from .internal import poll_fd
 from .line_settings import LineSettings, _line_settings_to_ext
 
 if TYPE_CHECKING: