"martian" <[EMAIL PROTECTED]> wrote: > 1) how does python handle: > > > for line in big_file: > > is big_file all read into memory or one line is read at a time or a buffer > is used or ...?
The "right" way to do this is: for line in file ("filename"): whatever The file object returned by file() acts as an iterator. Each time through the loop, another line is read and returned (I'm sure there is some block-level buffering going on at a low level). > 2) is it possible to advance lines within the loop? The following doesn't > work: > > > for line in big_file: > line_after = big_file.readline() You probably want something like: for line in file ("filename"): if skipThisLine: continue -- http://mail.python.org/mailman/listinfo/python-list