Rance Hall wrote: > Im wanting to use the builtin hashlib functions to encrypt passwords > before storing them in a database. > > According to documentation on the python.org site it should be as simple > as > > import hashlib > > hashname = hashlib.sha234 (or whatever other hash method you want > like md5 or whatever) > > hashname.update(b"test") the b is for byte since the documentation > states that hashlib does not accept strings > > hashname.hexdigest() or digest() will give you the hash encrypted > value. (hexdigest will encode the output in hex for use in email and > string db storage) > > > My problem is that hashname.update results in a: > > AttributeError: 'built_in_function_or_method' object has no attribute > 'update' > > I get this error in python 2 and python 3 > > I get it on multiple operating systems, so I dont understand whats > going wrong. Either there is a bug in the module hashlib, or the > module changed and the docs don't keep up.
Neither > Either way I can not encrypt the password of my project for new users > till I figure out whats going on. hashlib.sha224 is indeed a function: >>> f = hashlib.sha224 >>> f <built-in function openssl_sha224> You have to invoke it to get a hash object: >>> g = f() >>> g <sha224 HASH object @ 0x229dbf0> Complete working example: >>> import hashlib >>> h = hashlib.sha224() # note the parens >>> h.update(b"test") >>> h.hexdigest() '90a3ed9e32b2aaf4c61c410eb925426119e1a9dc53d4286ade99a809' Look here for another one: http://docs.python.org/dev/py3k/library/hashlib.html Peter _______________________________________________ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
