Errors and Warnings

core.errors.AmbiguousDataError([message])	Exception when data is ambiguous, for example, multiple active scalars can be set.
core.errors.DeprecationError([message])	Used for deprecated methods and functions.
plotting.errors.InvalidCameraError([message])	Exception when passed an invalid camera.
core.errors.InvalidMeshError([message])	Error for invalid mesh properties.
core.errors.InvalidMeshWarning	Warning for invalid mesh properties.
core.errors.MissingDataError([message])	Exception when data is missing, for example, no active scalars can be set.
core.errors.NotAllTrianglesError([message])	Exception when a mesh does not contain all triangles.
core.errors.PointSetCellOperationError([message])	Requested filter or property is not supported by the PointSet class.
core.errors.PointSetDimensionReductionError([...])	Requested filter or property is not supported by the PointSet class.
core.errors.PointSetNotSupported([message])	Requested filter or property is not supported by the PointSet class.
core.errors.PyVistaAttributeError([message])	Exception when accessing an attribute that is not part of the PyVista API.
core.errors.PyVistaDeprecationWarning	Non-supressed Deprecation Warning.
core.errors.PyVistaEfficiencyWarning	Efficiency warning.
core.errors.PyVistaFutureWarning	Non-supressed Future Warning.
core.errors.PyVistaPipelineError([message])	Exception when a VTK pipeline runs into an issue.
plotting.errors.RenderWindowUnavailable([...])	Exception when the render window is not available.
core.errors.VTKExecutionError([message])	Exception when a VTK output message is detected.
core.errors.VTKExecutionWarning	Warning when a VTK output message is detected.
core.errors.VTKVersionError([message])	Requested feature is not supported by the installed VTK version.

VTK Observers

These classes observe events on VTK objects, such as errors, warnings, and the progress of an algorithm.

Observer(*args, **kwargs)	A standard class for observing VTK objects.
ProgressMonitor(*args, **kwargs)	A standard class for monitoring the progress of a VTK algorithm.
core.utilities.VtkErrorCatcher([...])	Context manager to temporarily catch VTK errors.

VTK Error Output

These functions redirect the errors and warnings that VTK emits. To control how much VTK logs in the first place, see vtk_verbosity().

send_errors_to_logging()	Send all VTK error/warning messages to Python's logging module.
core.utilities.set_error_output_file(filename)	Set a file to write out the VTK errors.