code: def get_mimetype(url):
          
          filename = url.split('?')[0]
          filename = filename.split('#')[0]
          content_type, _ = mimetypes.guess_type(filename)
          return url, content_type
docs: Guess based on the file extension.
  
          Args:
              url (text): Web url that was linked to by a reddit submission.
  
          Returns:
              modified_url (text): The url (or filename) that will be used when
                  constructing the command to run.
              content_type (text): The mime-type that will be used when
                  constructing the command to run. If the mime-type is unknown,
                  return None and the program will fallback to using the web
                  browser.