J. J. Ramsey wrote: > if I can avoid doing what amounts to reading the > whole file into memory, changing the copy in memory, and writing it > all out again.
Except in very special circumstances, not really. If you do anything that makes a line longer or shorter, everything after that line in the file needs to be re-written, one way or another. If you're doing this sort of thing a lot, and need it to be faster than reading and rewriting the file, you may need to look into using a more sophisticated format on disk than a plain file. -- Greg -- http://mail.python.org/mailman/listinfo/python-list
