Peter Mexbacher wrote: > I have the following task: > > 1) read in a file line by line > 2) parse each line with a regular expression, and substitute certain > patterns > 3) end result: the old file with the substituted stuff (and of course > everything which did not need substitution) > > Do I have to write each line out to a new file, and then rename, or can > I substitute "in place" - that the changes are incorporated in the old > file automatically?
If you use the fileinput module with inplace=1 it will take care of this for you and even make a backup file if you like. Kent _______________________________________________ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
