Accessing Websites in Python with urllib.urlopen()

Feb 6, 2024 ยท 2 min read

The urllib.urlopen() function in Python provides a simple way to access and retrieve data from websites. It opens a connection to a URL and returns a file-like object that contains the website's content.

When to Use urllib.urlopen()

The urlopen function is useful for:

  • Fetching the HTML, JSON, XML, or other data from a web API
  • Scraping data from HTML web pages
  • Testing connectivity and access to a site
  • Downloading files from URLs
  • It provides a quick and easy way to make HTTP requests without needing an external library.

    A Practical Example

    Here is an example of using urlopen() to print the HTML from

    import urllib.request
    with urllib.request.urlopen('') as response:
       html =

    The key things this does:

  • Import urllib.request
  • Call urlopen() with the URL to open the connection
  • Use a with statement to ensure the connection is closed automatically
  • Read the response into a variable
  • Print out the HTML
  • Handling Issues

    There are some common issues to be aware of:

  • May need to handle HTTP errors like 404 or 500 statuses
  • Watch for content encoding like gzip compression
  • Need to decode bytes to text properly
  • Must provide full URLs including the protocol and domain
  • So you may need some extra error handling and decoding, but overall urlopen() handles most of the network request work for you.


    For more advanced HTTP requests, consider the Requests library. But for simple get requests, urllib works well and avoids needing an external module.

    Overall, urllib.urlopen() is a straightforward way to access web resources from Python. It handles opening and closing connections automatically, making it very convenient for basic scripts.

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