Upload a given file from the file_path to the bucket
            with the new name/path file_name.

def upload_file(self, file_name, file_path):
        """ Upload a given file from the file_path to the bucket
            with the new name/path file_name. """
        upload_key = Key(bucket=self.bucket, name=file_name)
        content_type = "text/plain"
        if file_name.endswith(".html"):
            content_type = "text/html"
        elif file_name.endswith(".jpg"):
            content_type = "image/jpeg"
        elif file_name.endswith(".png"):
            content_type = "image/png"
        upload_key.set_contents_from_filename(
            file_path,
            headers={"Content-Type": content_type})
        upload_key.url = \
            upload_key.generate_url(expires_in=3600).split("?")[0]
        try:
            upload_key.make_public()
        except Exception:
            pass