X-Git-Url: https://git.madduck.net/etc/vim.git/blobdiff_plain/0969ca4a46c4a2081be38f7e96a81a74b308c75f..7b153936587e17b9db992a2d8c8b6cfba3ef7209:/src/blackd/__init__.py

diff --git a/src/blackd/__init__.py b/src/blackd/__init__.py
index 5fdec15..d062303 100644
--- a/src/blackd/__init__.py
+++ b/src/blackd/__init__.py
@@ -195,7 +195,7 @@ def parse_python_variant_header(value: str) -> Tuple[bool, Set[black.TargetVersi
                     raise InvalidVariantHeader(f"3.{minor} is not supported")
                 versions.add(black.TargetVersion[version_str])
             except (KeyError, ValueError):
-                raise InvalidVariantHeader("expected e.g. '3.7', 'py3.5'")
+                raise InvalidVariantHeader("expected e.g. '3.7', 'py3.5'") from None
         return False, versions