On 6/11/2011 10:40 AM, Asen Bozhilov wrote:
It is exactly what I wanted to know. Thank you. I have not examined
classes in Python yet, but when I do it I will understand some new
things. One of the most interesting is, can an object inherit items
trough the parent class? By items I mean items which are accessible
trough square bracket notation.
.attributes are inherited. [index-or-key] items are not.
I really like Pythonic way here. Square bracket and dot notations
allow me to create an object which can be "true" hash map and
meanwhile to support independent methods from its keys. I could have
an item and a property with same names and they won't interfere each
other.
Right. d.items is a dict method. d['items'] is whatever you assign.
Named tuples in the collections modules, which allow access to fields
through .name as well as [index], have the name class problem. All the
methods are therefore given leading underscore names to avoid this. [But
there still could be a clash if someone used field names with leading
underscores!] Python reserves and uses __xxx__ for system names just to
avoid clashes.
--
Terry Jan Reedy
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