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Fix update when 0 docs

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This commit is contained in:
Matthew Honnibal 2017-08-01 22:10:17 +02:00
parent 8fce187de4
commit 2e00361522
1 changed files with 5 additions and 0 deletions
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5
spacy/language.py
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@ -292,6 +292,11 @@ class Language(object):
>>> for docs, golds in epoch: >>> for docs, golds in epoch:
>>> state = nlp.update(docs, golds, sgd=optimizer) >>> state = nlp.update(docs, golds, sgd=optimizer)
""" """
if len(docs) != len(golds):
raise IndexError("Update expects same number of docs and golds "
"Got: %d, %d" % (len(docs), len(golds)))
if len(docs) == 0:
return
tok2vec = self.pipeline[0] tok2vec = self.pipeline[0]
feats = tok2vec.doc2feats(docs) feats = tok2vec.doc2feats(docs)
grads = {} grads = {}