Bugs item #1202533, was opened at 2005-05-15 19:43 Message generated for change (Comment added) made by tjreedy You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=105470&aid=1202533&group_id=5470
Category: Python Interpreter Core Group: None Status: Open >Resolution: Works For Me Priority: 5 Submitted By: Armin Rigo (arigo) Assigned to: Nobody/Anonymous (nobody) Summary: a bunch of infinite C recursions Initial Comment: There is a general way to cause unchecked infinite recursion at the C level, and I have no clue at the moment how it could be reasonably fixed. The idea is to define special __xxx__ methods in such a way that no Python code is actually called before they invoke more special methods (e.g. themselves). >>> class A: pass >>> A.__mul__=new.instancemethod(operator.mul,None,A) >>> A()*2 Segmentation fault ---------------------------------------------------------------------- >Comment By: Terry J. Reedy (tjreedy) Date: 2005-05-18 22:02 Message: Logged In: YES user_id=593130 On Windows, this caused the interactive window to just disappear.so I suspect something similar occurred. New is a known dangerous, use at your own risk, implementation specific module whose use, like byte code hacking, is outside the language proper. Both bypass normal object creation syntax and its checks and both can create invalid objects. A hold-your- hand inplementation would not give such access to internals. Lib Ref 3.28 says "This module provides a low-level interface to the interpreter, so care must be exercised when using this module. It is possible to supply non-sensical arguments which crash the interpreter when the object is used." Should more or different be said? If not, I suspect this should be closed as 'won't fix', as in 'won't remove the inherently dangerous new module'. ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=105470&aid=1202533&group_id=5470 _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
