reading csv problem

[ajikoe at gmail.com]

Hello,

I use csv to take information from file.
import csv
reader = csv.reader(open('t.csv'))

for row in reader:
    print row # it is perfectly OK

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But If I use this code I have problem
import csv
reader = csv.reader(open('t.csv'))

for row in reader:
    print row # it is perfectly OK
for row in reader:
    print row # it is not printed on the monitor???

Why does only the first print row work here?

TIA,
ajikoe