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How to do Python microblogging crawler, I believe that many inexperienced people are helpless about this, for this reason this article summarizes the causes and solutions of the problem, through this article I hope you can solve this problem.

Microblogging is an active social networking platform with thousands of instant messages every day. Collecting this information is very useful for us to analyze a microblogging event, a microblogging event. Here are some tips to prevent crawlers from being blocked when crawling Weibo data, hoping to help everyone.

1. Set cookies.

Cookies are actually some encrypted data stored in the user terminal. Some websites identify users through cookies. If visits are always frequently requested, the website suspected of being a crawler is likely to be noticed by the website. At this time, the website can find the visiting user through cookies and refuse access.

There are two ways to solve this problem: customize cookie policy settings to prevent cookierejected problems, and disable cookies.

2. Modify IP. In fact, Weibo identifies IP, not account number.

That is, mock logins don't make sense when you need to constantly retrieve large amounts of data. If it is the same IP, regardless of the account number is useless, the key lies in the IP address.

One of webserver's strategies for dealing with crawlers is to block access to the IP or the entire IP segment directly, and when the IP is blocked, switch to another IP to continue access, which requires the use of proxy IP.

There are many ways to obtain IP addresses, the most common method is to obtain a large number of high-quality IP addresses from proxy IP websites.

User-Agent refers to a string containing browser information, operating system information, etc., also known as a special network protocol.

It can determine whether the current access object is a browser, mail client or web crawler.

The specific method is to change the User-Agent value to the browser's way, or even set up a User-Agent pool (list, dictionary subscriptions) to store multiple "browsers," randomly selecting one at each crawl to set the User-Agent of the request, so the User-Agent is always changing to prevent blocking.

After reading the above content, do you know how to do Python microblogging crawler? If you still want to learn more skills or want to know more related content, welcome to pay attention to the industry information channel, thank you for reading!

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