Python has a module called mimetypes that you can use to guess the mime type of a file in Python. However it is not a reliable way to know the mime type of a file.
>>> import mimetypes >>> print(mimetypes.MimeTypes().guess_type('my_file.txt')) text/plain
You can also use a non-standard module called python-magic to deduce the mimetype of a file.
>>> import magic >>> mime = magic.Magic(mime=True) >>> mime.from_file("my_file.txt") text/plain