Self-learning Python: Three Problems Caused by Web Crawlers

Self-study Python web crawler may encounter the following three problems: 1. Anti-crawler mechanism of websites: Some websites have anti-crawler mechanisms, such as verification code, login restriction, IP shielding, etc. To prevent crawlers from crawling data. To solve this problem, we can use proxy IP, verification code identification and other technologies to bypass the anti-crawler mechanism. 2. Structuring and cleaning of data: The captured data may be disorganized and need to be structured and cleaned to meet our needs. You can use Python's data processing libraries, such as Pandas and BeautifulSoup, to process data. 3. Grab speed and efficiency: If you want to grab a lot of data, you may encounter the problem of slow grab speed. Techniques such as multithreading and asynchronous request can be used to improve crawling speed and efficiency. Octopus collector is an Internet data collector with comprehensive functions, simple operation and wide application. If you need to collect data, Octopus Collector can provide you with intelligent identification and flexible custom collection rule settings to help you get the required data quickly. Learn more about the functions and cooperation cases of Squidward Tentacles Collector, please go to official website for details.