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-rw-r--r--bsie/extractor/generic/constant.py6
1 files changed, 6 insertions, 0 deletions
diff --git a/bsie/extractor/generic/constant.py b/bsie/extractor/generic/constant.py
index 795bac6..7da792a 100644
--- a/bsie/extractor/generic/constant.py
+++ b/bsie/extractor/generic/constant.py
@@ -38,6 +38,12 @@ class Constant(extractor.Extractor):
self._tuples = tuple((self.schema.predicate(p_uri), value) for p_uri, value in tuples)
# FIXME: use schema instance for value checking
+ def __eq__(self, other: typing.Any) -> bool:
+ return super().__eq__(other) \
+ and self._tuples == other._tuples
+
+ def __hash__(self) -> int:
+ return hash((super().__hash__(), self._tuples))
def extract(
self,