diff options
Diffstat (limited to 'Lib/fontTools/ufoLib/errors.py')
| -rw-r--r-- | Lib/fontTools/ufoLib/errors.py | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/Lib/fontTools/ufoLib/errors.py b/Lib/fontTools/ufoLib/errors.py index 304345e4..e05dd438 100644 --- a/Lib/fontTools/ufoLib/errors.py +++ b/Lib/fontTools/ufoLib/errors.py @@ -1,3 +1,4 @@ +from __future__ import annotations class UFOLibError(Exception): @@ -9,7 +10,12 @@ class UnsupportedUFOFormat(UFOLibError): class GlifLibError(UFOLibError): - pass + 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): |