> On Mon, Feb 1, 2010 at 13:19, "Martin v. Löwis" <mar...@v.loewis.de> wrote: >> How do you write to a zipfile while others are reading it?
On Mon, Feb 1, 2010 at 1:23 PM, Brett Cannon <br...@python.org> wrote: > By hating concurrency (i.e. I don't have an answer which kills my idea). The python I use (win32 2.6.2) does not complain if it cannot read from or write to a .pyc; and thus it handles multiple python processes trying to create .pyc files at the same time. Is the .zip case really any different? Since .pyc files are an optimization, it seems natural and correct that .pyc IO errors pass silently (apologies to Tim). It's an interesting challenge to write the file in such a way that it's safe for a reader and writer to co-exist. Like Brett, I considered an append-only scheme, but one needs to handle the case where the bytecode for a particular magic number changes. At some point you'd need to sweep garbage from the file. All solutions seem unnecessarily complex, and unnecessary since in practice the case should not come up. paul _______________________________________________ Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
