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* Improve error message on oracle failure

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This commit is contained in:
Matthew Honnibal 2015-01-28 00:58:03 +11:00
parent 1d39562946
commit d819101571
1 changed files with 17 additions and 1 deletions
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18
spacy/syntax/arc_eager.pyx
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@ -206,5 +206,21 @@ cdef class TransitionSystem:
score = scores[i] score = scores[i]
t = self._moves[best] t = self._moves[best]
t.score = score t.score = score
assert best >= 0 if best < 0:
msg = ("No gold move found for configuration.\n"
"Is the gold-standard parse a projective tree?\n"
"S unl cost: %d\n"
"D unl cost: %d\n"
"L unl cost: %d\n"
"R unl cost: %d\n"
"S0, S0 gold: %d, %d\n"
"N0, N0 gold: %d, %d\n"
)
fields = [unl_costs[SHIFT], unl_costs[REDUCE], unl_costs[LEFT],
unl_costs[RIGHT],
s.stack[0], gold_heads[s.stack[0]],
s.i, gold_heads[s.i]]
raise Exception(msg % tuple(fields))
return t return t