class closure question

[Steven W. Orr]

I want to indirectly change the value of a variable.

#! /usr/bin/python
foo = [44]
bar = foo
bar[0] = 55
print 'bar = ', bar
print 'foo = ', foo

This works fine.

bar =  [55]
foo =  [55]

But I want to do the same with a class value.

#! /usr/bin/python
S = None
dd = { 'class': [S] }
class C1(object):
     def __init__(self):
         print 'Hello from C1'

def mkclass(base):
     class zzz(base):
         pass
     return zzz

dd['class'][0] = mkclass( C1 )
print "dd['class'][0].__bases__ = ", dd['class'][0].__bases__
print 'S = ', S

The answer is not what I want:

dd['class'][0].__bases__ =  (<class '__main__.C1'>,)
S =  None

The goal is for S to be set to the returned class from mkclass.

Can someone help?

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