Python: requests.exceptions.ConnectionError. Max retries exceeded with url

Maybe you are overloading the proxy server by sending too much requests in a short period of time, you say that you got the proxy from a popular free proxy website which means that you’re not the only one using that server and it’s often under heavy load.

If you add some delay between your requests like this :

from time import sleep

[...]

data=requests.get(url, proxies=proxy)
data1=data.content
print data1
print {'http': line}
sleep(1)

(note the sleep(1) which pauses the execution of the code for one second)

Does it work ?

def hello(self):
    self.s = requests.Session()
    self.s.headers.update({'User-Agent': self.user_agent})
    return True

Try this,It worked for me 🙂

This happens when you send too many requests to the public IP address of https://anydomainname.example.com/. It as you can see caused due to some reason which does not allow/block access to the public IP address mapping with https://anydomainname.example.com/. One better solution is the following python script which calculates the public IP address of any domain and creates that mapping to the /etc/hosts file.

import re
import socket
import subprocess
from typing import Tuple

ENDPOINT = 'https://anydomainname.example.com/'

def get_public_ip() -> Tuple[str, str, str]:
    """
    Command to get public_ip address of host machine and endpoint domain
    Returns
    -------
    my_public_ip : str
        Ip address string of host machine.
    end_point_ip_address : str
        Ip address of endpoint domain host.
    end_point_domain : str
        domain name of endpoint.

    """
    # bash_command = """host myip.opendns.com resolver1.opendns.com | 
    #     grep "myip.opendns.com has" | awk '{print $4}'"""
    # bash_command = """curl ifconfig.co"""
    # bash_command = """curl ifconfig.me"""
    bash_command = """ curl icanhazip.com"""
    my_public_ip = subprocess.getoutput(bash_command)
    my_public_ip = re.compile("[0-9.]{4,}").findall(my_public_ip)[0]
    end_point_domain = (
        ENDPOINT.replace("https://", "")
        .replace("http://", "")
        .replace("/", "")
    )
    end_point_ip_address = socket.gethostbyname(end_point_domain)
    return my_public_ip, end_point_ip_address, end_point_domain


def set_etc_host(ip_address: str, domain: str) -> str:
    """
    A function to write mapping of ip_address and domain name in /etc/hosts.
    Ref: https://stackoverflow.com/questions/38302867/how-to-update-etc-hosts-file-in-docker-image-during-docker-build

    Parameters
    ----------
    ip_address : str
        IP address of the domain.
    domain : str
        domain name of endpoint.

    Returns
    -------
    str
        Message to identify success or failure of the operation.

    """
    bash_command = """echo "{}    {}" >> /etc/hosts""".format(ip_address, domain)
    output = subprocess.getoutput(bash_command)
    return output


if __name__ == "__main__":
    my_public_ip, end_point_ip_address, end_point_domain = get_public_ip()
    output = set_etc_host(ip_address=end_point_ip_address, domain=end_point_domain)
    print("My public IP address:", my_public_ip)
    print("ENDPOINT public IP address:", end_point_ip_address)
    print("ENDPOINT Domain Name:", end_point_domain )
    print("Command output:", output)

You can call the above script before running your desired function 🙂

This happens when you overload the server with multiple requests. In order to bypass this you can increase the time between each request. But the best thing in my case was to increase the retry times in each request

requests.adapters.DEFAULT_RETRIES = 5 # increase retries number
requests.get(url)

If this is still not helpful you can find more ways here.