Python uses DrissionPage to achieve automated web page collection

introduction

In today's digital age, the automated collection and processing of web content has become increasingly important. This article will introduce how to use DrissionPage, a powerful Python library to achieve automated collection of web page content.

Introduction to DrissionPage

DrissionPage is an automated testing and web operation tool based on Chrome/Chromium. It provides a simple and easy-to-use API that can help us quickly automate web operations.

Main functional features

1. Flexible browser configuration

   • Supports custom user data directory
   • You can use the default browser configuration of the system

2. Tag page management

   • Support multi-tab operation
   • It is convenient to close unwanted tabs

3. Element search and operation

   • Supports multiple selectors (CSS, XPath, etc.)
   • Provides an explicit wait mechanism
   • Simple element clicks and content extraction

Practical examples

Here is a complete collection example of web content:

# Import the necessary modulesimport os
from DrissionPage import ChromiumOptions, Chromium
import time

def main():
    # Create browser configuration    co = ChromiumOptions()
    co.use_system_user_path()  # Configure using system browser    
    # Initialize the browser    browser = Chromium(co)
    tab = browser.latest_tab
    
    # Visit the landing page    ("/browser_control/intro")
    
    # Wait for page elements to load    .ele_displayed("css:selector", timeout=10)
    
    # Get the required elements    elements = ("css:selector")
    
    # traversal processing elements    for index, element in enumerate(elements):
        # Extract content        title = ("css:a").text
        content = ("css:Article Selector").text
        
        # Save content        ("new-docs", exist_ok=True)
        with open(f"new-docs/{index+1}_{title}.md", "w", encoding="utf-8") as f:
            (content)
        
        (1)  # Appropriate delay

Key points of implementation

1. Browser initialization: Use ChromiumOptions for browser configuration, you can choose to use system configuration or custom configuration.

2. Page operation：

   • useget()Method to access the landing page
   • passwait.ele_displayed()Ensure that the element loading is complete
   • Use the selector to get the required element

3. Content extraction and saving：

   • Extract element text content
   • Create a directory to save files
   • Save content with appropriate encoding

Things to note

1. Add appropriate delays to avoid too fast operation
2. Use exception handling mechanism to ensure program stability
3. Pay attention to the impact of changes in web page structure
4. Comply with the website's crawling policy

Summarize

DrissionPage provides a powerful and simple way to automate web pages. By rationally using the functions it provides, we can easily collect and process web content. In practical applications, it is recommended to adjust the code structure according to specific needs and add necessary error handling mechanisms to improve the robustness of the program.

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