On Tue, 11 Apr 2006 19:07:19 +1200, rumours say that Lawrence D'Oliveiro <[EMAIL PROTECTED]> might have written:
>In article <[EMAIL PROTECTED]>, > [EMAIL PROTECTED] wrote: > >>i need to go into a directory to grab some files and do some >>processing. >>The thing is, i need to wait till the process that generates the files >>in that directory to finish >>before i can grab the files. eg if file A is being generated and has >>not finished, my python script will not go into the directory. >>how can i check that file A has actually finished? >I wrote a similar system that watches for new files arriving in an >"uploads" directory, whether copied there via FTP or using a GUI desktop >script. My heuristic was to only process files whose last-modified >date/time was at least 5 minutes in the past. My assumption was that it >was unlikely that 5 minutes would go by between more information being >added to a file. This works (unless there are long network timeouts, when downloading...), but another idea is to wait for the existence of a zero-byte sentinel file that is created last, after the transfer (or process, in general) has ended. This method is the one that has worked best for me. -- TZOTZIOY, I speak England very best. "Dear Paul, please stop spamming us." The Corinthians -- http://mail.python.org/mailman/listinfo/python-list
