superset dates 源码
superset dates 代码
文件路径：/superset/utils/dates.py
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# to you 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.
from datetime import datetime
import pytz
EPOCH = datetime(1970, 1, 1)
def datetime_to_epoch(dttm: datetime) -> float:
"""Convert datetime to milliseconds to epoch"""
if dttm.tzinfo:
dttm = dttm.replace(tzinfo=pytz.utc)
epoch_with_tz = pytz.utc.localize(EPOCH)
return (dttm - epoch_with_tz).total_seconds() * 1000
return (dttm - EPOCH).total_seconds() * 1000
def now_as_float() -> float:
return datetime_to_epoch(datetime.utcnow())
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