lenskit.diagnostics

Warning and error classes and general LensKit diagnostic code.

Exceptions

DataWarning	Warning raised for detectable problems with input data.
DataError	Error raised for detectable problesms with input data.
FieldError	The requested field does not exist.
ConfigWarning	Warning raised for detectable problems with component configurations.
TypecheckWarning	Warnings for runtime type check failures.
PipelineError	Pipeline configuration errors.
PipelineWarning	Pipeline configuration and setup warnings. We also emit warnings to the

Module Contents

exception lenskit.diagnostics.DataWarning

Bases: UserWarning

Warning raised for detectable problems with input data.

exception lenskit.diagnostics.DataError

Bases: Exception

Error raised for detectable problesms with input data.

exception lenskit.diagnostics.FieldError(entity, field)

Bases: KeyError

The requested field does not exist.

exception lenskit.diagnostics.ConfigWarning

Bases: UserWarning

Warning raised for detectable problems with component configurations.

exception lenskit.diagnostics.TypecheckWarning

Bases: UserWarning

Warnings for runtime type check failures.

exception lenskit.diagnostics.PipelineError

Bases: Exception

Pipeline configuration errors.

Note

This exception is only to note problems with the pipeline configuration and structure (e.g. circular dependencies). Errors running the pipeline are raised as-is.

exception lenskit.diagnostics.PipelineWarning

Bases: Warning

Pipeline configuration and setup warnings. We also emit warnings to the logger in many cases, but this allows critical ones to be visible even if the client code has not enabled logging.

Note

This warning is only to note problems with the pipeline configuration and structure (e.g. circular dependencies). Errors running the pipeline are raised as-is.