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Make error when no label found more helpful

This commit is contained in:
Matthew Honnibal 2018-02-21 16:00:59 +01:00
parent ea2fc5d45f
commit a0ddb803fd
1 changed files with 6 additions and 1 deletions
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7
spacy/syntax/arc_eager.pyx
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@ -527,7 +527,12 @@ cdef class ArcEager(TransitionSystem):
is_valid[i] = False
costs[i] = 9000
if n_gold < 1:
# Check projectivity --- leading cause
# Check label set --- leading cause
label_set = set([self.strings[self.c[i].label] for i in range(self.n_moves)])
for label_str in gold.labels:
if label_str is not None and label_str not in label_set:
raise ValueError("Cannot get gold parser action: unknown label: %s" % label_str)
# Check projectivity --- other leading cause
if is_nonproj_tree(gold.heads):
raise ValueError(
"Could not find a gold-standard action to supervise the "