Heiko Wundram, 14.01.2012 23:45: > Am 14.01.2012 10:46, schrieb Peter Otten: >> Steven D'Aprano wrote: >>> How many people rely on hash(some_string) being stable across Python >>> versions? Does anyone have code that will be broken if the string hashing >>> algorithm changes? >> >> Nobody who understands the question ;) > > Erm, not exactly true. There are actually some packages out there (take > suds [https://fedorahosted.org/suds/], for example) that rely on the > hashing algorithm to be stable to function "properly" (suds uses hash() of > strings to create caches of objects/XML Schemas on the filesystem).
That's a stupid design. Using a hash function that the application does not control to index into persistent storage just screams for getting the code broken at some point. Stefan -- http://mail.python.org/mailman/listinfo/python-list
