FeatureEnVi: Visual Analytics for Feature Engineering Using Stepwise Selection and Semi-Automatic Extraction Approaches
https://doi.org/10.1109/TVCG.2022.3141040
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52 lines
1.5 KiB
52 lines
1.5 KiB
# Copyright 2010-2015 MongoDB, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""Timezone related utilities for BSON."""
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from datetime import (timedelta,
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tzinfo)
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ZERO = timedelta(0)
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class FixedOffset(tzinfo):
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"""Fixed offset timezone, in minutes east from UTC.
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Implementation based from the Python `standard library documentation
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<http://docs.python.org/library/datetime.html#tzinfo-objects>`_.
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Defining __getinitargs__ enables pickling / copying.
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"""
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def __init__(self, offset, name):
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if isinstance(offset, timedelta):
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self.__offset = offset
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else:
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self.__offset = timedelta(minutes=offset)
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self.__name = name
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def __getinitargs__(self):
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return self.__offset, self.__name
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def utcoffset(self, dt):
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return self.__offset
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def tzname(self, dt):
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return self.__name
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def dst(self, dt):
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return ZERO
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utc = FixedOffset(0, "UTC")
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"""Fixed offset timezone representing UTC."""
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