Shuffle all rows of a csv file with Python

I have an input csv file with data:

a 15 b 14 c 20 d 45

I want to generate a different csv file which will contain complete data rows from input file but rows should be shuffled.

like output file may contain values-

b 14 a 15 c 20 d 45

I have tried this code:

import random
import sys
op=open('random.csv','w+')
ip=open(sys.argv[1],'r')
data=ip.read()
data1=str(random.choices(data))
op.write(data1)
op.close()