CLN Remove unneeded variable definition in DictVectorizer.fit
@@ -160,7 +160,6 @@ class DictVectorizer(TransformerMixin, BaseEstimator):
for f, v in x.items():
if isinstance(v, str):
feature_name = "%s%s%s" % (f, self.separator, v)
- v = 1
elif isinstance(v, Number) or (v is None):
feature_name = f
elif isinstance(v, Mapping):
