Jean-Paul Calderone schrieb: > Python 2.5 made quite a changes which were not backwards compatible, > though. I think for the case of Python 2.4 -> Python 2.5 transition, > quite a few apps will be broken, many of them in relatively subtle > ways (for example, they may have been handling OSError instead of > WindowsError
That shouldn't cause a problem, though: OSError is a base class of WindowsError, so if handled OSError, the same exception handlers will get invoked. The problem occurs when they had been handling WindowsError, and looked at errno, treating it as a windows error code: errno is now a real POSIX error number (with the same values that the errno module uses), and the windows error number is stored in an additional attribute. > or it might define a > slightly buggy but previously working __hash__ which returns the id() of > an object That shouldn't cause problems, either. It did cause problems in the beta release, but IIRC, somebody solved this before the release... > it might have relied on the atime and mtime fields of a > stat structure being integers rather than floats). This was actually changed in 2.3, not in 2.5; 2.5 just changed the value of os.stat_float_times. Advance warning about this change was given for quite some time (but certainly, most people have ignored it). Regards, Martin -- http://mail.python.org/mailman/listinfo/python-list
