Question

Hi
I have a code to read the csv file

import csv
d = csv.reader(open('C:/Documents and Settings/242481/My Documents/file.csv'))
for row in d:
    print row

This code returns all the rows in the csv file
Is there any way i can read one row at a time.
And each time i execute the print line i need to get the next row.
Thanks in advance
Aadith

Answer 1

it should work the way you have it, but maybe the EOL characters are not what is expected for the system you’re on. try opening it with ‘rU’: open(‘file.csv’, ‘rU’)

to verify that it’s printing one row at a time, you could print a blank line between rows:

for row in d:
 print row
 print

or pause it:

for row in d:
 print row
 raw_input('continue-> ')

For your other code, it should be something like:

def value():
 infile=open("C:/Documents and Settings/242481/My Documents/file.csv", "rU")
 data = [row for row in infile]
 infile.close()
 return data

Always close your open files. It’s good practice, even though not always strictly necessary. And ‘file’ is a Python class name. Although you can use these any way you wish, doing so can lead to hard-to-find bugs later on.