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This article introduces you how the HTML download module is, the content is very detailed, interested friends can refer to, hope to be helpful to you.

HTML download module

The main purpose of this module is to download the web content of the corresponding url according to the url provided. Using the module requets-HTML, add the retry logic and set the maximum number of retries, at the same time limit the access time to prevent the false death of the program caused by not responding for a long time.

According to the returned status code, the source code is returned if the access is successful, otherwise the retry will be started, and the retry operation will be carried out if an exception occurs.

From requests_html import HTMLSession

From fake_useragent import UserAgent

Import requests

Import time

Import random

Class Gethtml ():

Def _ _ init__ (self,url= "http://wwww.baidu.com"):

Self.ua = UserAgent ()

Self.url=url

Self.session=HTMLSession (mock_browser=True)

# there is a default method self.headers = default_headers () for headers

# mock_browser means to use useragent

Def get_source (self,url,retry=1):

If retry > 3:

Print ("retry more than three times, jump out of the loop")

Return None

While retry

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