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- # SPDX-FileCopyrightText: 2015 Eric Larson
- #
- # SPDX-License-Identifier: Apache-2.0
- from __future__ import annotations
- import logging
- from argparse import ArgumentParser
- from typing import TYPE_CHECKING
- from pip._vendor import requests
- from pip._vendor.cachecontrol.adapter import CacheControlAdapter
- from pip._vendor.cachecontrol.cache import DictCache
- from pip._vendor.cachecontrol.controller import logger
- if TYPE_CHECKING:
- from argparse import Namespace
- from pip._vendor.cachecontrol.controller import CacheController
- def setup_logging() -> None:
- logger.setLevel(logging.DEBUG)
- handler = logging.StreamHandler()
- logger.addHandler(handler)
- def get_session() -> requests.Session:
- adapter = CacheControlAdapter(
- DictCache(), cache_etags=True, serializer=None, heuristic=None
- )
- sess = requests.Session()
- sess.mount("http://", adapter)
- sess.mount("https://", adapter)
- sess.cache_controller = adapter.controller # type: ignore[attr-defined]
- return sess
- def get_args() -> Namespace:
- parser = ArgumentParser()
- parser.add_argument("url", help="The URL to try and cache")
- return parser.parse_args()
- def main() -> None:
- args = get_args()
- sess = get_session()
- # Make a request to get a response
- resp = sess.get(args.url)
- # Turn on logging
- setup_logging()
- # try setting the cache
- cache_controller: CacheController = (
- sess.cache_controller # type: ignore[attr-defined]
- )
- cache_controller.cache_response(resp.request, resp.raw)
- # Now try to get it
- if cache_controller.cached_request(resp.request):
- print("Cached!")
- else:
- print("Not cached :(")
- if __name__ == "__main__":
- main()
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