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Nicely handle errors loading default extensions

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This commit is contained in:
Richard Bowman 2020-03-27 16:11:10 +00:00
parent f338b3b869
commit 1426848283
1 changed files with 24 additions and 12 deletions
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36
openflexure_microscope/api/default_extensions/__init__.py
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@ -1,18 +1,30 @@
import logging import logging
import traceback import traceback
from contextlib import contextmanager
from .autofocus import autofocus_extension_v2 @contextmanager
from .scan import scan_extension_v2 def handle_extension_error(extension_name):
from .zip_builder import zip_extension_v2 """'gracefully' log an error if an extension fails to load."""
from .autostorage import autostorage_extension_v2 try:
from .camera_stage_mapping import csm_extension yield
except Exception as e:
logging.error(
f"Exception loading builtin extension picamera_autocalibrate: \n{traceback.format_exc()}"
)
# "Gracefully" handle cases where picamera cannot be imported (eg test server) with handle_extension_error("autofocus"):
try: from .autofocus import autofocus_extension_v2
with handle_extension_error("scan"):
from .scan import scan_extension_v2
with handle_extension_error("zip builder"):
from .zip_builder import zip_extension_v2
with handle_extension_error("autostorage"):
from .autostorage import autostorage_extension_v2
with handle_extension_error("camera stage mapping"):
from .camera_stage_mapping import csm_extension
with handle_extension_error("lens shading calibration"):
from .picamera_autocalibrate import lst_extension_v2 from .picamera_autocalibrate import lst_extension_v2
except Exception as e:
logging.error(
f"Exception loading builtin extension picamera_autocalibrate: \n{traceback.format_exc()}"
)
from ..example_extensions.custom_element import customelement_extension_v2 #FIXME: this oughtn't stay in the production version...
with handle_extension_error("custom element example"):
from ..example_extensions.custom_element import customelement_extension_v2