41 lines
1.3 KiB
Python
41 lines
1.3 KiB
Python
import logging
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from .error_sources import ErrorSource
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# Error/exception messages we have enumerated and expect
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PICAMERA_ERROR_MAP = {
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"Camera is not enabled. Try running 'sudo raspi-config' and ensure that the camera has been enabled.": ErrorSource(
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"Camera is not enabled. Try running 'sudo raspi-config' and ensure that the camera has been enabled."
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),
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"Failed to enable connection: Out of resources": ErrorSource(
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"Camera already in use by another application. Please reboot your microscope."
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),
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}
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# Basic import error. Usually damaged or disconnected camera
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PICAMERA_IMPORT_ERROR = ErrorSource(
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(
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"Picamera module could not be imported. Check physical connections to the camera as it may be damaged or disconnected.",
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)
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)
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def main():
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error_sources = []
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logging.info("Attempting to import picamera...")
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try:
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import picamerax
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except Exception as e: # pylint: disable=W0703
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error_sources.append(PICAMERA_IMPORT_ERROR)
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else:
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try:
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_ = picamerax.PiCamera()
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except picamerax.PiCameraError as e:
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msg = e.args[0]
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if msg in PICAMERA_ERROR_MAP:
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error_sources.append(PICAMERA_ERROR_MAP[msg])
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else:
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error_sources.append(ErrorSource("Unenumerated exception: " + msg))
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return error_sources
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