On 2/22/2013 4:35 AM, Wolfgang Maier wrote:
Dear all, I am wondering what the rules are that determine whether a built-in type is subclassable or not. As examples, why can you base your classes on int or set, but not on bool or range? Also: can you use introspection to find out whether a type is valid as a base type?
You are not the first to ask about this. I opened a doc issue. http://bugs.python.org/issue17279 -- Terry Jan Reedy -- http://mail.python.org/mailman/listinfo/python-list
