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from __future__ import annotations
class UFOLibError(Exception):
pass
class UnsupportedUFOFormat(UFOLibError):
pass
class GlifLibError(UFOLibError):
def _add_note(self, note: str) -> None:
# Loose backport of PEP 678 until we only support Python 3.11+, used for
# adding additional context to errors.
# TODO: Replace with https://docs.python.org/3.11/library/exceptions.html#BaseException.add_note
(message, *rest) = self.args
self.args = ((message + "\n" + note), *rest)
class UnsupportedGLIFFormat(GlifLibError):
pass
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