Python Scapy execution problem with sendpfast

Question

In Linux, I have a problem with scapy using sendpfast Is there anyone who experiences the same problem as me?

I will be very grateful to someone who has a solution to this.

my code after I implemented python on Linux terminal

import sys

from scapy.all import *

pkt = Ether(src="00:00:00:00:00:01", dst="00:00:00:00:00:02")/IP(src="10.1.1.1", dst="10.1.1.2")/UDP(sport=5001, dport=5002)/Raw(RandString(size=1460))

sendpfast(pkt, pps=1000, loop=10000)

and this is a error code written on terminal.

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/local/lib/python2.7/dist-packages/scapy/sendrecv.py", line 398, in sendpfast
    log_runtime.info(stdout.decode())
  File "/usr/local/lib/python2.7/dist-packages/scapy/utils.py", line 555, in __exit__
    raise OSError(msg)
OSError: sendpfast(): executing 'tcpreplay' failed`

I reinstalled tcpreplay(version 4.4.2) with the scapy. My python version is 2.7 and I don't know what's the problem.