KeyError: "[E018] Can't retrieve string for hash while running movie sentiment example

While running movie sentiment example I am getting the following error while running the code explainer = AnchorText(nlp, predict_fn):

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KeyError Traceback (most recent call last) <ipython-input-12-184c1e0a132f> in <module>() ----> 1 explainer = AnchorText(nlp, predict_fn)

2 frames /usr/local/lib/python3.6/dist-packages/alibi/explainers/anchor_text.py in <listcomp>(.0) 43 self.w_prob = w_prob 44 # list with spaCy lexemes in vocabulary —> 45 self.to_check = [self.nlp.vocab[w] for w in self.nlp.vocab.vectors if self.nlp.vocab[w].prob >= self.w_prob] 46 self.n_similar = n_similar 47

vocab.pyx in spacy.vocab.Vocab.getitem()

lexeme.pyx in spacy.lexeme.Lexeme.init()

vocab.pyx in spacy.vocab.Vocab.get_by_orth()

strings.pyx in spacy.strings.StringStore.getitem()

KeyError: “[E018] Can’t retrieve string for hash ‘11580349482641876976’. This usually refers to an issue with the Vocab or StringStore.”

[adrianeboyd]

A workaround would be:

self.to_check = [self.nlp.vocab[w] for w in self.nlp.vocab.vectors if int(w) in self.nlp.vocab.strings and self.nlp.vocab[w].prob >= self.w_prob]

The keys in nlp.vocab.vectors are supposed to all be int, but in some v2.2 md models they’re accidentally numpy.uint64.

[jklaise]

@adrianeboyd thanks for the workaround. @devchaitu18 I’ll put this in the master shortly.