# Source code for apache_beam.error

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"""Python Dataflow error classes."""

# pytype: skip-file

[docs]class BeamError(Exception):
"""Base class for all Beam errors."""

[docs]class PipelineError(BeamError):
"""An error in the pipeline object (e.g. a PValue not linked to it)."""

[docs]class PValueError(BeamError):
"""An error related to a PValue object (e.g. value is not computed)."""

[docs]class RunnerError(BeamError):
"""An error related to a Runner object (e.g. cannot find a runner to run)."""

[docs]class RuntimeValueProviderError(RuntimeError):
"""An error related to a ValueProvider object raised during runtime."""

[docs]class SideInputError(BeamError):
"""An error related to a side input to a parallel Do operation."""

[docs]class TransformError(BeamError):
"""An error related to a PTransform object."""