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Close the camera if the stage cannot be opened

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This commit is contained in:
Joel Collins 2019-03-21 17:48:45 +00:00
parent 6b9a34437e
commit a98158634c
1 changed files with 13 additions and 8 deletions
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21
openflexure_microscope/api/app.py
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@ -7,6 +7,7 @@ from flask import (
Flask, render_template) Flask, render_template)
from flask.logging import default_handler from flask.logging import default_handler
from serial import SerialException
from flask_cors import CORS from flask_cors import CORS
@ -71,15 +72,19 @@ def attach_microscope():
api_camera = StreamingCamera(config=api_microscope.rc.read()) api_camera = StreamingCamera(config=api_microscope.rc.read())
logging.debug("Creating stage object...") logging.debug("Creating stage object...")
api_stage = Stage("/dev/ttyUSB0") try:
api_stage = Stage("/dev/ttyUSB0")
except SerialException as e:
api_camera.close()
raise e
else:
logging.debug("Attaching devices to microscope...")
api_microscope.attach(
api_camera,
api_stage
)
logging.debug("Attaching devices to microscope...") logging.debug("Microscope successfully attached!")
api_microscope.attach(
api_camera,
api_stage
)
logging.debug("Microscope successfully attached!")
##### WEBAPP ROUTES ###### ##### WEBAPP ROUTES ######