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9a5003d5c8
* added contributor agreement * issue #3128 throw exception on bad IOB/2 formatting * Update spacy/cli/converters/iob2json.py with ValueError Co-Authored-By: gavrieltal <gtloria@protonmail.com>
64 lines
2.1 KiB
Python
64 lines
2.1 KiB
Python
# coding: utf8
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from __future__ import unicode_literals
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from cytoolz import partition_all, concat
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from .._messages import Messages
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from ...compat import json_dumps, path2str
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from ...util import prints
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from ...gold import iob_to_biluo
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import re
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def iob2json(input_path, output_path, n_sents=10, *a, **k):
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"""
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Convert IOB files into JSON format for use with train cli.
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"""
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with input_path.open('r', encoding='utf8') as file_:
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sentences = read_iob(file_)
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docs = merge_sentences(sentences, n_sents)
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output_filename = (input_path.parts[-1]
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.replace(".iob2", ".json")
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.replace(".iob", ".json"))
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output_file = output_path / output_filename
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with output_file.open('w', encoding='utf-8') as f:
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f.write(json_dumps(docs))
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prints(Messages.M033.format(n_docs=len(docs)),
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title=Messages.M032.format(name=path2str(output_file)))
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def read_iob(raw_sents):
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sentences = []
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for line in raw_sents:
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if not line.strip():
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continue
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tokens = [re.split('[^\w\-]', line.strip())]
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if len(tokens[0]) == 3:
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words, pos, iob = zip(*tokens)
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elif len(tokens[0]) == 2:
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words, iob = zip(*tokens)
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pos = ['-'] * len(words)
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else:
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raise ValueError('The iob/iob2 file is not formatted correctly. Try checking whitespace and delimiters.')
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biluo = iob_to_biluo(iob)
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sentences.append([
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{'orth': w, 'tag': p, 'ner': ent}
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for (w, p, ent) in zip(words, pos, biluo)
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])
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sentences = [{'tokens': sent} for sent in sentences]
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paragraphs = [{'sentences': [sent]} for sent in sentences]
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docs = [{'id': 0, 'paragraphs': [para]} for para in paragraphs]
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return docs
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def merge_sentences(docs, n_sents):
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counter = 0
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merged = []
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for group in partition_all(n_sents, docs):
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group = list(group)
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first = group.pop(0)
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to_extend = first['paragraphs'][0]['sentences']
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for sent in group[1:]:
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to_extend.extend(sent['paragraphs'][0]['sentences'])
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merged.append(first)
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return merged
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