On Aug 16, 3:35 pm, beginner <[EMAIL PROTECTED]> wrote: > > In perl it is just one line: $a=$b->{"A"} ||={}. >
a = b.setdefault('A', {}) This combines all two actions together: - Sets b['A'] to {} if it is not already defined - Assigns b['A'] to a More info on dict methods here: http://docs.python.org/lib/typesmapping.html -- http://mail.python.org/mailman/listinfo/python-list