A quick command line tool for determining the MIME type of a local file as returned by NSURLConnection. Requires Mac OS X.

mimetype.py

#!/usr/bin/python

from Foundation import *

def MIMETypeForFileAtPath(path):
    url = NSURL.fileURLWithPath_(path)
    request = NSURLRequest.requestWithURL_(url)
    data, response, error = NSURLConnection.sendSynchronousRequest_returningResponse_error_(request, None, None)
    return response.MIMEType()

if __name__ == '__main__':
    import argparse
    parser = argparse.ArgumentParser()
    parser.add_argument("paths", metavar="path", type=str, nargs='+')
    args = parser.parse_args()
    for path in args.paths:
        print MIMETypeForFileAtPath(path)