Python HTTPConnectionPool Failed to establish a new connection: [Errno 11004] getaddrinfo failed

I was wondering if my requests is stopped by the website and I need to set a proxy.I first try to close the http’s connection ,bu I failed.I also try to test my code but now it seems no outputs.Mybe I use a proxy everything will be OK? Here is the code.

import requests
from urllib.parse import urlencode
import json
from bs4 import BeautifulSoup
import re
from html.parser import HTMLParser
from multiprocessing import Pool
from requests.exceptions import RequestException
import time


def get_page_index(offset, keyword):
    #headers = {'User-Agent':'Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10_6_8; en-us) AppleWebKit/534.50 (KHTML, like Gecko) Version/5.1 Safari/534.50'}
    data = {
        'offset': offset,
        'format': 'json',
        'keyword': keyword,
        'autoload': 'true',
        'count': 20,
        'cur_tab': 1
    }
    url = 'http://www.toutiao.com/search_content/?' + urlencode(data)
    try:
        response = requests.get(url, headers={'Connection': 'close'})
        response.encoding = 'utf-8'
        if response.status_code == 200:
            return response.text
        return None
    except RequestException as e:
        print(e)

def parse_page_index(html):
    data = json.loads(html)
    if data and 'data' in data.keys():
        for item in data.get('data'):
            url = item.get('article_url')
            if url and len(url) < 100:
                yield url

def get_page_detail(url):
    try:
        response = requests.get(url, headers={'Connection': 'close'})
        response.encoding = 'utf-8'
        if response.status_code == 200:
            return response.text
        return None
    except RequestException as e:
        print(e)

def parse_page_detail(html):
    soup = BeautifulSoup(html, 'lxml')
    title = soup.select('title')[0].get_text()
    pattern = re.compile(r'articleInfo: (.*?)},', re.S)
    pattern_abstract = re.compile(r'abstract: (.*?).', re.S)
    res = re.search(pattern, html)
    res_abstract = re.search(pattern_abstract, html)
    if res and res_abstract:
        data = res.group(1).replace(r".replace(/<br />|n|r/ig, '')", "") + '}'
        abstract = res_abstract.group(1).replace(r"'", "")
        content = re.search(r'content: (.*?),', data).group(1)
        source = re.search(r'source: (.*?),', data).group(1)
        time_pattern = re.compile(r'time: (.*?)}', re.S)
        date = re.search(time_pattern, data).group(1)
        date_today = time.strftime('%Y-%m-%d')
        img = re.findall(r'src=&quot;(.*?)&quot', content)
        if date[1:11] == date_today and len(content) > 50 and img:
            return {
                'title': title,
                'content': content,
                'source': source,
                'date': date,
                'abstract': abstract,
                'img': img[0]
            }

def main(offset):
    flag = 1
    html = get_page_index(offset, '光伏')
    for url in parse_page_index(html):
        html = get_page_detail(url)
        if html:
            data = parse_page_detail(html)
            if data:
                html_parser = HTMLParser()
                cwl = html_parser.unescape(data.get('content'))
                data['content'] = cwl
                print(data)
                print(data.get('img'))
                flag += 1
                if flag == 5:
                    break



if __name__ == '__main__':
    pool = Pool()
    pool.map(main, [i*20 for i in range(10)])

and the error is the here!

HTTPConnectionPool(host='tech.jinghua.cn', port=80): Max retries exceeded with url: /zixun/20160720/f191549.shtml (Caused by NewConnectionError('<requests.packages.urllib3.connection.HTTPConnection object at 0x00000000048523C8>: Failed to establish a new connection: [Errno 11004] getaddrinfo failed',))

By the way, When I test my code at first it shows everything is OK! Thanks in advance!

Answer

It seems to me you’re hitting the limit of connection in the HTTPConnectionPool. Since you start 10 threads at the same time

Try one of the following:

1. Increase the request timeout (seconds): requests.get('url', timeout=5)
2. Close the response: Response.close(). Instead of returning response.text, assign response to a varialble, close Response, and then return variable