Send HTTP requests using python-requests with timeout, tcp reuse(session) and retry.

decent_request.py

from requests.adapters import HTTPAdapter, Retry
from requests import Session

retries = Retry(
  total=5, backoff_factor=1, status_forcelist=[502, 503, 504]
)
session = Session()  # reuse tcp connection
session.mount("http://", HTTPAdapter(max_retries=retries))
session.mount("https://", HTTPAdapter(max_retries=retries))

session.get("https://example.com", timeout=5)  # seconds

防止 python http request 出现hang-up 。不过，也可以简单使用 httpx lib