"""
Python module to download EPA AirNow Data using WebServices API
https://docs.airnowapi.org/webservices
AirNow contains real-time up-to-date pollution data but is less reliable
than AQS
"""
# Copyright (c) 2021. Harvard University
#
# Developed by Research Software Engineering,
# Faculty of Arts and Sciences, Research Computing (FAS RC)
# Author: Michael A Bouzinier
#
# 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.
#
import logging
import os
from datetime import datetime
from epa.airnow_downloader import AirNowDownloader
from epa.airnow_ds_def import AirNowContext
from nsaph import init_logging
[docs]class AirNow:
"""
Main class
"""
def __init__(self, context: AirNowContext = None):
init_logging()
if not context:
context = AirNowContext(__doc__)
self.context = context
if self.context.destination is None:
self.context.destination = os.curdir
if self.context.shapes:
for f in self.context.shapes:
if not os.path.isfile(f):
raise ValueError(f)
self.start = datetime.strptime(context.start_date, "%Y-%m-%d").date()
self.end = datetime.strptime(context.end_date, "%Y-%m-%d").date()
self.downloader = AirNowDownloader(context=self.context)
def download(self):
if self.context.reset:
self.downloader.reset()
self.downloader.download_range(self.start, self.end)
if __name__ == '__main__':
logging.basicConfig(level=logging.INFO)
downloader = AirNow()
downloader.download()