Did you mean 10 random non-empty lines?
The following will give you each sample as a list of lists of floats.
Code:
import pprint
import random
with open('hsp.txt') as f:
lines = [l.strip().split('\t') for l in f.readlines() if l.strip()]
for line in lines:
line[:] = [float(number) for number in line]
# Whatever
n = 2
for i in xrange(1, n + 1):
print
print "Try {}".format(i)
samples = random.sample(lines, 10)
pprint.pprint(samples)
