else:

            with open(filename, 'rb') as f:

                gist_content = f.read()

    else:

        filename = DEFAULT_FILENAME

        gist_content = None

        # little bit hacky but cross platform check where the

        # stdin comes from we skip the terminal case it can be handled by '-'

        mode = os.fstat(0).st_mode

        if stat.S_ISFIFO(mode):

            # "stdin is piped"

            gist_content = sys.stdin.read()

        elif stat.S_ISREG(mode):

            # "stdin is redirected"

            gist_content = sys.stdin.read()

        else:

            # "stdin is terminal"

            pass

    # make sure we don't upload binary stuff

    if gist_content and '\0' in gist_content:

        raise Exception('Error: binary files upload is not possible')

    if gist_content:

        files = {

            filename: {

                'content': gist_content,

                'lexer': None

            }

        }

        margs = dict(

            gist_lifetime=args.lifetime,

            gist_description=args.description,

            gist_type='private' if args.private else 'public',

            files=files

        )

        api_call(apikey, host, 'json', 'create_gist', **margs)

    return 0

def main(argv=None):

    """

    Main execution function for cli

    :param argv: