[Python-Dev] Exception for setting attributes of built-in type
Exception for setting attributes of built-in type differs between CPython and IronPython. This is not purely theoretical, as zope.interface tries to set Implements declaration as __implemented__ attribute of built-in type object, and excepts TypeError. Python 2.6.1 object.flag = True TypeError: can't set attributes of built-in/extension type 'object' IronPython 2.6 object.flag = True AttributeError: 'object' object has no attribute 'flag' I was surprised that CPython raises TypeError. Library Reference seems to mention it here: exception AttributeError Raised when an attribute reference or assignment fails. (When an object does not support attribute references or attribute assignments at all, TypeError is raised.) http://docs.python.org/library/exceptions.html What does it mean that an object does not support attribute references or attribute assignments at all? -- Seo Sanghyeon ___ Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
[Python-Dev] Request for review
Can someone have a look at #860326? I got bitten by it today, and I can see no reason not to apply suggested patch. Thanks! Seo Sanghyeon ___ Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
[Python-Dev] PEP 247 and hashlib
PEP 247 -- API for Cryptographic Hash Functions specifies a standard API for hashing modules. new([string]) ... the optional 'string' parameter, if supplied, will be immediately hashed into the object's starting state, as if obj.update(string) was called. But hashlib.new() takes the algorithm name... Does PEP need an update? By the way, I am thinking about mapping .NET's System.Security.Cryptography.HashAlgorithm.Create and created object's ComputeHash method to Python's hash API for IronPython. For that, I'd like to see a clarification. Seo Sanghyeon ___ Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
