How to Discover File MIME Types in Python?

Discovering File MIME Types in Python

Determining a file's MIME type is crucial for facilitating automatic opening in browsers based on content-type headers in HTTP responses. This article explores methods for obtaining MIME types in Python.

Using the python-magic Library

The python-magic library provides a straightforward approach to extracting MIME types. Its current trunk located at Github offers an updated method:

import magic
mime = magic.Magic(mime=True)
mime.from_file("testdata/test.pdf") # 'application/pdf'

This code snippet retrieves the MIME type of the file named "test.pdf," which in this case is "application/pdf."

Additional Considerations

• Browser Involvement: Browsers do not generally add MIME type information when posting files.
• Databases for MIME Types: While dedicated databases for MIME types exist, it's generally more efficient to use a library like python-magic.

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