Python csv.reader: How do I return to the top of the file?

Question

When I'm moving through a file with a csv.reader, how do I return to the top of the file. If I were doing it with a normal file I could just do something like "file.seek(0)". Is there anything like that for the csv module?

Thanks ahead of time ;)

Answer 1

You can seek the file directly. For example:

>>> f = open("csv.txt") >>> c = csv.reader(f) >>> for row in c: print row ['1', '2', '3'] ['4', '5', '6'] >>> f.seek(0) >>> for row in c: print row   # again ['1', '2', '3'] ['4', '5', '6'] 

Answer 2

You can still use file.seek(0). For instance, look at the following:

import csv file_handle = open("somefile.csv", "r") reader = csv.reader(file_handle) # Do stuff with reader file_handle.seek(0) # Do more stuff with reader as it is back at the beginning now 

This should work since csv.reader is working with the same.