New submission from Matthew Mueller <[EMAIL PROTECTED]>: mmap on large files on 64 bit platforms in python >=2.5 returns some sort of garbage. In 2.4 it would just throw an exception. Now I get something like this (script runs md5.md5 on mmap object, and then runs os.system md5sum for comparison):
This is python2.5 from Ubuntu 8.04 AMD64 /tmp$ python2.5 testbigfile.py python mmap md5: 1230552d39b7c1751f86bae5205ec0c8 abe59e28c9a3f11b883f62c80a3833a5 *bigfile This is python svn as of 20080601, compiled the on same system. /tmp$ python2.6 testbigfile.py testbigfile.py:5: DeprecationWarning: the md5 module is deprecated; use hashlib instead import md5 python mmap md5: 1230552d39b7c1751f86bae5205ec0c8 abe59e28c9a3f11b883f62c80a3833a5 *bigfile Also note how the python md5 call returns immediately, not something you would expect when md5ing 4GB of data. ---------- components: Extension Modules files: testbigfile.py messages: 67623 nosy: donut severity: normal status: open title: mmap broken with large files on 64bit system type: behavior versions: Python 2.6 Added file: http://bugs.python.org/file10500/testbigfile.py _______________________________________ Python tracker <[EMAIL PROTECTED]> <http://bugs.python.org/issue3026> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
