我试图获得应用商店>业务的内容:

import requests
from lxml import html

page = requests.get("https://itunes.apple.com/in/genre/ios-business/id6000?mt=8")
tree = html.fromstring(page.text)

flist = []
plist = []
for i in range(0, 100):
    app = tree.xpath("//div[@class='column first']/ul/li/a/@href")
    ap = app[0]
    page1 = requests.get(ap)

当我尝试(0,2)的范围,它工作,但当我把范围在100,它显示这个错误:

Traceback (most recent call last):
  File "/home/preetham/Desktop/eg.py", line 17, in <module>
    page1 = requests.get(ap)
  File "/usr/local/lib/python2.7/dist-packages/requests/api.py", line 55, in get
    return request('get', url, **kwargs)
  File "/usr/local/lib/python2.7/dist-packages/requests/api.py", line 44, in request
    return session.request(method=method, url=url, **kwargs)
  File "/usr/local/lib/python2.7/dist-packages/requests/sessions.py", line 383, in request
    resp = self.send(prep, **send_kwargs)
  File "/usr/local/lib/python2.7/dist-packages/requests/sessions.py", line 486, in send
    r = adapter.send(request, **kwargs)
  File "/usr/local/lib/python2.7/dist-packages/requests/adapters.py", line 378, in send
    raise ConnectionError(e)
requests.exceptions.ConnectionError: HTTPSConnectionPool(host='itunes.apple.com', port=443): Max retries exceeded with url: /in/app/adobe-reader/id469337564?mt=8 (Caused by <class 'socket.gaierror'>: [Errno -2] Name or service not known)

当前回答

在公司环境中指定代理为我解决了这个问题。

page = requests.get("http://www.google.com:80", proxies={"http": "http://111.233.225.166:1234"})

完整的错误是:

requests.exceptions.ConnectionError: httpconnectionpool (host='www.google.com', port=80): Max retries exceeded with url: /(由NewConnectionError(': Failed to establish a new connection: [WinError 10060]连接尝试失败,因为被连接的一方在一段时间后没有正确响应,或已建立的连接失败,因为连接的主机未能响应'))

其他回答

只需使用请求功能:

import requests
from requests.adapters import HTTPAdapter
from urllib3.util.retry import Retry


session = requests.Session()
retry = Retry(connect=3, backoff_factor=0.5)
adapter = HTTPAdapter(max_retries=retry)
session.mount('http://', adapter)
session.mount('https://', adapter)

session.get(url)

这将获取URL并重试3次,以防出现requests.exceptions.ConnectionError。Backoff_factor将有助于在尝试之间应用延迟,以避免在定期请求配额的情况下再次失败。

看一下urllib3.util.retry。重试,它有许多选项来简化重试。

当我在浏览器中运行路线时,我有同样的错误,但在邮差中,它工作得很好。我的问题是,在查询字符串之前的路由之后没有/。

127.0.0.1:5000 / api / v1 /搜索/ ?location=Madina提出错误,并在搜索对我有效后删除/。

当我在编写selenium浏览器测试脚本时,在使用JS api调用之前调用driver.quit()时遇到了这个错误。记住,放弃网络驱动是最不应该做的事情!

在我的例子中,我在python脚本中部署了一些docker容器,然后调用其中一个部署的服务。当我在调用服务之前添加一些延迟时,错误被修复。我认为它需要时间来准备接受连接。

from time import sleep
#deploy containers
#get URL of the container
sleep(5)
response = requests.get(url,verify=False)
print(response.json())

加上我自己的经验:

r = requests.get(download_url)

当我试图下载url中指定的文件时。

错误在于

HTTPSConnectionPool(host, port=443): Max retries exceeded with url (Caused by SSLError(SSLError("bad handshake: Error([('SSL routines', 'tls_process_server_certificate', 'certificate verify failed')])")))

我通过在函数中添加verify = False来纠正它,如下所示:

r = requests.get(download_url + filename)
open(filename, 'wb').write(r.content)