Why Am I Getting a \'403 Forbidden\' Error When Making Python Requests API Calls?-Python Tutorial-php.cn

Why Am I Getting a \'403 Forbidden\' Error When Making Python Requests API Calls?

Susan Sarandon

Release： 2024-11-02 03:19:30

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Why Am I Getting a

Troubleshooting "403 Forbidden" Errors in Python Requests API Calls

When attempting to extract data from a website using Python's requests module, it's not uncommon to encounter a "403 Forbidden" error. This error indicates that the server is refusing to fulfill the request due to access restrictions.

Consider the following code snippet:

<code class="python">import requests

url = 'http://worldagnetwork.com/'
result = requests.get(url)
print(result.content.decode())</code>

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When executed, this code may return the following error:

<html>
<head><title>403 Forbidden</title></head>
<body bgcolor="white">
<center><h1>403 Forbidden</h1></center>
<hr><center>nginx</center>
</body>
</html>

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The issue in this case arises from the fact that the website rejects GET requests that lack a proper User-Agent header. By visiting the page in a browser (e.g., Chrome) and inspecting the network traffic, we can determine the User-Agent used by the browser.

To resolve the error, we need to add the User-Agent header to our requests call:

<code class="python">import requests

url = 'http://worldagnetwork.com/'
headers = {'User-Agent': 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/50.0.2661.102 Safari/537.36'}
result = requests.get(url, headers=headers)
print(result.content.decode())</code>

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With the User-Agent header added, the request should now succeed in parsing the website's HTML content.

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