Provide a friendlier exception fhen no usb backend found on unix-like systems#123
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robberwick merged 2 commits intoarvydas:release/2.0-devfrom Feb 23, 2025
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src/blinkstick/backends/unix_like.py:48
- [nitpick] Consider enhancing the error message raised for the USB backend unavailability by providing additional guidance—such as a reference or suggestion for installing libusb—to help users resolve the issue.
except usb.core.NoBackendError:
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This pull request includes changes to improve error handling in the
blinksticklibrary, specifically within the Unix-like backend. The most important changes include adding a new exception for USB backend availability and updating the device discovery method to handle this new exception. This exception specifically mentions the availability of libusb, to provide improved signposting towards remediation for users.Error handling improvements:
src/blinkstick/backends/unix_like.py: Added import forUSBBackendNotAvailableexception and updated theget_attached_blinkstick_devicesmethod to raise this exception if the USB backend is not available. [1] [2]src/blinkstick/exceptions.py: Added a newUSBBackendNotAvailableexception class to handle cases where the USB backend is not available.