rwb27
commented
2 years ago Hi @pawel1010 this looks like a really cool project! I've skimmed over your extension code and I think the problem might be that the extension definition isn't finished - you define some MethodView subclasses, but they are not attached to a BasePlugin subclass, so I don't think they will ever actually be exposed via the HTTP interface.
I am currently working on a nicer way to define all this, but it will be a while before it's properly ready. In the meantime, you probably want to:
- define a subclass of
BasePlugin - call
self.add_viewin the__init__method for each action you want to expose - Ideally, include a line that says
LABTHINGS_EXTENSIONS = [MyExtension]so the extension class is picked up properly (there is a work-around in the code, so this shouldn't stop it working if you omit it).
Also, I notice you're initialising some of the hardware at import time: it will work more nicely, especially with my plans to improve extensions in the future, if you initialise the hardware in the __init__ method of your BaseExtension subclass. If you swap your MethodView subclasses to be ActionView subclasses, you'll be able to access the extension object as self.extension.
A useful example would be the camera-stage mapping extension or indeed any of the default ones.
pawel1010
I installed Raspbian-OpenFlexure system on my RPi 3, I installed required repo for ADC with pip. Then I've downloaded example extension folder and placed it in
/var/openflexure/extensions/microscope_extensionsand I pasted code ofstage.pyinside file/src/ofm_example_extension/extension.py. Then I run on my RPi 3 commandofm serveand then on my computer I run programmain.pyand I get an error: