hello, I'm making a virtual machine, in which (small) pieces of software (called bricks) are connected, by connecting an output of a brick to the input of another brick.
A connection between 2 bricks may be of any type, so it might be simple integer, or a multi-nested dictionary / list or whatsoever . Connections are made with the following statement (in simplified form) Brick2.In = Brick2.Out Now if the connection is a complex object, e.g. a list, Brick2.In and Brick2.Out points to the same object, and can automatically exchange information. Now if the connection consists of a simple integer, the statement Brick2.In = Brick2.Out just assigns once a value to Brick2, so there's no real communication anymore. I solved that by adding modify-flags and receiver lists. The problem is how can I determine if a connection is a pointer or not ? Which I'm not sure might be the same as mutable ? ( The type of connection need not be a standard Python type, but might be any type created by the user. ) thanks, Stef Mientki -- http://mail.python.org/mailman/listinfo/python-list