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CodeSignal

Automating Web Content Retrieval and Parsing in Python

via CodeSignal

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Overview

Learn to build a robust web search and content extraction module in Python. Use duckduckgo_search, httpx, and html-to-markdown to query, fetch HTML, and convert to Markdown. Enhance it with URL deduplication, error logging, and retries via tenacity for safe, reliable scraping.

Syllabus

  • Unit 1: Searching the Web with DDGS in Python
    • Your First Web Search with DDGS
    • Extracting URLs from Search Results
    • Fetching Web Content with httpx
    • Converting HTML to Readable Markdown
  • Unit 2: Creating the Web Searcher Module
    • Building the Web Searcher Function
    • Enhancing Web Searcher for Multiple Results
    • Adding a Parameter to control Multiple Results
    • Adding Timeouts for Web Requests
    • Structuring Search Results for Better Context
    • Adding Robust Error Handling
  • Unit 3: Avoiding Common Pitfalls in Our Web Searcher
    • Skipping Duplicate URLs for Efficiency
    • Graceful Error Handling for Web Requests
    • Resetting URL Tracking for Fresh Searches
    • Customizing Search Results with Parameters
  • Unit 4: Making the Web Search Reliable and Safe
    • Adding Logging to Your Web Searcher
    • Handling Web Errors Like a Pro
    • Automatic Retries for Web Requests
    • Specify when to retry with Tenacity

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