[Python] magic.MagicException: no magic files loaded

On OSX, I have installed python-magic through pip on a virtual env.

I get a magic file not found error, when I do this,

import magic

print magic.Magic(mime=True).from_file("/opt/local/bin/python2.7")


And I get this

magic.MagicException: no magic files loaded


I tried with setting magic_file parameter and I still get it.

print magic.Magic(mime=True,
magic_file="/opt/local/share/misc/magic").from_file("/opt/local/bin/python2.7")


And yes, I have verified the magic file exists.

I use Python installed through macports.

EDIT: I tried the same thing with homebrew. Installed libmagic through brew and installed
python-magic. And the results are the same.

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