Source code for deeppavlov.models.preprocessors.str_lower

# Copyright 2017 Neural Networks and Deep Learning lab, MIPT
#
# 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
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# 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
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from typing import Union

from deeppavlov.core.common.registry import register


[docs]@register('str_lower') def str_lower(batch: Union[str, list, tuple]): """Recursively search for strings in a list and convert them to lowercase Args: batch: a string or a list containing strings at some level of nesting Returns: the same structure where all strings are converted to lowercase """ if isinstance(batch, str): return batch.lower() else: return list(map(str_lower, batch))