json_to_spacy.py

# Convert json file to spaCy format.
import plac
import logging
import argparse
import sys
import os
import json
import pickle

@plac.annotations(input_file=("Input file", "option", "i", str), output_file=("Output file", "option", "o", str))

def main(input_file=None, output_file=None):
    try:
        training_data = []
        lines=[]
        with open(input_file, 'r') as f:
            lines = f.readlines()

        for line in lines:
            data = json.loads(line)
            text = data['content']
            entities = []
            for annotation in data['annotation']:
                point = annotation['points'][0]
                labels = annotation['label']
                if not isinstance(labels, list):
                    labels = [labels]

                for label in labels:
                    entities.append((point['start'], point['end'] + 1 ,label))


            training_data.append((text, {"entities" : entities}))

        print(training_data)

        with open(output_file, 'wb') as fp:
            pickle.dump(training_data, fp)

    except Exception as e:
        logging.exception("Unable to process " + input_file + "\n" + "error = " + str(e))
        return None
if __name__ == '__main__':
    plac.call(main)

Hi @kaustumbh7, I', try to transfer json file to the spacy format.
The command I run is
python json_to_spacy.py -i input_file -o output_file
But I got an error:
output_file is not UTF-8 encoded Saving disabled. See Console for more details.
Here is the console screenshot.

Hello @kaustumbh7,
I believe that there is a mistake in this section of the code:

        for annotation in data['annotation']:
            point = annotation['points'][0]
            labels = annotation['label']
            if not isinstance(labels, list):
                labels = [labels]
            for label in labels:
                entities.append((point['start'], point['end'] + 1 ,label))

Namely the "annotation['points'][0]" part, it's always getting the first point and appending only that one to the entities, furthermore:

            for label in labels:
                entities.append((point['start'], point['end'] + 1 ,label))

will only append only one (start, end, label) point tuple, for each label (because each annotation contains exactly one label), so if a label has more than one entity, they will be discarded.

I suggest using the following code instead, to allow more than one point per label:

        for annotation in data['annotation']:
            points = annotation['points']
            label = annotation['label'][0]
            if not isinstance(points, list):
                points = [points]
            for point in points:
                entities.append((point['start'], point['end'] + 1, label))

With this we can get the data as such:

  ('I like London and Berlin.',
  [(7, 13, 'LOC'), (18, 24, 'LOC')])

Instead of

  ('I like London and Berlin.',
  [(7, 13, 'LOC')])