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Add return typehints to magic methods

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This commit is contained in:
Julian Stirling 2025-08-27 14:04:25 +01:00
parent 4c46330959
commit 2ce49088e7
17 changed files with 41 additions and 34 deletions
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10
src/openflexure_microscope_server/things/camera/picamera.py
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@ -53,7 +53,9 @@ class MissingCalibrationError(RuntimeError):
class PicameraStreamOutput(Output):
"""An Output class that sends frames to a stream."""
def __init__(self, stream: lt.outputs.MJPEGStream, portal: lt.deps.BlockingPortal):
def __init__(
self, stream: lt.outputs.MJPEGStream, portal: lt.deps.BlockingPortal
) -> None:
"""Create an output that puts frames in an MJPEGStream.
We need to pass the stream object, and also the blocking portal, because
@ -126,7 +128,7 @@ class StreamingPiCamera2(BaseCamera):
generalisation.
"""
def __init__(self, camera_num: int = 0):
def __init__(self, camera_num: int = 0) -> None:
"""Initialise the camera with the given camera number.
This makes no connection to the camera (except to get the default tuning file).
@ -384,7 +386,7 @@ class StreamingPiCamera2(BaseCamera):
)
self._picamera_lock = RLock()
def __enter__(self):
def __enter__(self) -> None:
"""Start streaming when the Thing context manager is opened.
This opens the picamera connection, initialises the camera, sets the
@ -430,7 +432,7 @@ class StreamingPiCamera2(BaseCamera):
_exc_type: type[BaseException],
_exc_value: Optional[BaseException],
_traceback: Optional[TracebackType],
):
) -> None:
"""Close the picamera connection when the Thing context manager is closed."""
self.stop_streaming()
with self._streaming_picamera() as cam: