def print_ipv4_event(cpu, data, size):
    event = ct.cast(data, ct.POINTER(Data_ipv4)).contents
    if args.timestamp:
        if start_ts == 0:
            start_ts = event.ts_us
        print(((event.ts_us - start_ts) / 100000) % "%-9.3f", end="")
    print("%-6d %-12.12s %-2d %-16s %-16s %-4d" % (event.pid, event.task,
        event.ip, inet_ntoa(event.saddr), inet_ntoa(event.daddr),
        event.dport))
dataset/ETHPy150Open iovisor/bcc/tools/tcpconnect.py/print_ipv4_event/swapped operands of `%`