Alan G wrote: > ARe you sure? The problem using seek and write is that if the data > you are inserting is bigger than your marker you will overwrite the > data following the marker.
Alan, you missed the last part of the code - he writes the rest of the data following the match into the file. This is an innovative approach which may have some benefit over the usual / read the whole file / change the data in memory / write the whole file / method as it avoids re-writing the part of the file before the change. It also avoids making a new string with the modified data. These could be significant benefits if the data is very large. > This does not insert it overwrites. > You are better to insert the content into contents and > then just write it all back to the file in one move. > > >> file.write(contents[pos + len(name):]) >> file.close() This is the piece you missed. ^^^^ Kent _______________________________________________ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
