Re-open files in Python?

Question

Say I have this simple python script:

file = open('C:\some_text.txt')
print file.readlines()
print file.readlines()

When it is run, the first print prints a list containing the text of the file, while the second print prints a blank list. Not completely unexpected I guess. But is there a way to 'wind back' the file so that I can read it again? Or is the fastest way just to re-open it?

Answer 1

You can reset the file pointer by calling seek():

file.seek(0)

will do it. You need that line after your first readlines(). Note that file has to support random access for the above to work.