Python Csvwriter Randomize Rows

Is it possible to make a randomizer that randomizes entire rows using the csvwriter? The code I have is similar to this:

 for i in range(45):
    count=count+1
    writer.writerow((count,pattern))

Where pattern is a number which corresponds to count. For example: when count=1 pattern=1; count=2 pattern=9; count=3 pattern=17, and so on... I want a way to randomize the rows so that the correct count corresponds to the correct pattern still. Any help is greatly appreciated!