Sorry for mailing about a bug instead of putting in a bug tracker ticket. The bug tracker's login system just sits there for a minute then says "an error has occurred".
This line of code is broken in Windows: https://github.com/python/cpython/blob/v2.7.15/Objects/fileobject.c#L721 _lseeki64 only modifies the kernel's seek position, not the cached position stored in stdio. This sometimes leads to problems where fgetpos does not return the correct file pointer. The solution is to not do that "SIZEOF_FPOS_T >= 8" code at all on Windows, and just do this instead (or make a new HAVE_FSEEKI64 macro): #elif defined(MS_WINDOWS) return _fseeki64(fp, offset, whence); 3.x is unaffected because it uses the Unix-like FD API in Windows instead of stdio, in which its usage of _lseeki64 is correct. Thanks, Melissa _______________________________________________ Python-Dev mailing list Python-Dev@python.org https://mail.python.org/mailman/listinfo/python-dev Unsubscribe: https://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
