python - Import csv as List of List of Integers -

i have following csv file

12,29,63,44 54,43,65,34 

i'm trying import list of list such each index integer. here's have far.

import csv filename = 'file.csv' open(filename, 'ru') p:         #reads csv list of lists         my_list = list(list(rec) rec in csv.reader(p, delimiter=','))   print my_list >>> [['12','29','63','44'],['54','43','65','34']] 

as can see produces list of list of strings, not integers. how import csv file list of list of integers? this

 >>> [[12,29,63,44],[54,43,65,34]] 

map int:

 my_list = [list(map(int,rec)) rec in csv.reader(p, delimiter=',')]   [[12, 29, 63, 44], [54, 43, 65, 34]] 

which equivalent to:

my_list = [[int(x) x in rec] rec in csv.reader(p, delimiter=',')]