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from __future__ import print_function, division, absolute_import
class BooleanOperationsError(Exception):
"""Base BooleanOperations exception"""
class InvalidContourError(BooleanOperationsError):
"""Rased when any input contour is invalid"""
class InvalidSubjectContourError(InvalidContourError):
"""Rased when a 'subject' contour is not valid"""
class InvalidClippingContourError(InvalidContourError):
"""Rased when a 'clipping' contour is not valid"""
class ExecutionError(BooleanOperationsError):
"""Raised when clipping execution fails"""
class OpenContourError(BooleanOperationsError):
"""Raised when any input contour is open"""
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