Datasets:
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# coding=utf-8
# Copyright 2023 The HuggingFace Datasets Authors and Ilya Gusev
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# Lint as: python3
"""Russian news dataset"""
import os
import io
import zstandard
import jsonlines
import datasets
try:
import simdjson
parser = simdjson.Parser()
def parse_json(x):
try:
return parser.parse(x).as_dict()
except ValueError:
return
except ImportError:
import json
def parse_json(x):
return json.loads(x)
_DESCRIPTION = "Russian news dataset"
_URL = "ru_news.jsonl.zst"
class RuNewsDataset(datasets.GeneratorBasedBuilder):
VERSION = datasets.Version("0.0.1")
BUILDER_CONFIGS = [
datasets.BuilderConfig(name="default", version=VERSION, description=""),
]
DEFAULT_CONFIG_NAME = "default"
def _info(self):
features = datasets.Features(
{
"url": datasets.Value("string"),
"text": datasets.Value("string"),
"title": datasets.Value("string"),
"source": datasets.Value("string"),
"timestamp": datasets.Value("uint64"),
}
)
return datasets.DatasetInfo(
description=_DESCRIPTION,
features=features
)
def _split_generators(self, dl_manager):
downloaded_file = dl_manager.download(_URL)
return [
datasets.SplitGenerator(name=datasets.Split.TRAIN, gen_kwargs={"path": downloaded_file}),
]
def _generate_examples(self, path):
with open(path, "rb") as f:
cctx = zstandard.ZstdDecompressor()
reader_stream = io.BufferedReader(cctx.stream_reader(f))
reader = jsonlines.Reader(reader_stream, loads=parse_json)
for id_, item in enumerate(reader):
yield id_, item
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