Class scoping problem...

[Simon Brunning]

I'm having a bit of a problem with scoping within a class. Something similar
is mentioned in Andrew Kuchling's 'Python Warts' page, but I can't find a
workaround.

Take the following:

class Foo:

    def __init__(self):
        self.bar = 1

    def baz(self):

        def quix():
            return self.bar

        return quix()

foo = Foo()

print foo.baz()

Running this, I get this:

Traceback (most recent call last):
  File "H:\SBrunning\Python\ClassScope.py", line 15, in ?
    print foo.baz()
  File "H:\SBrunning\Python\ClassScope.py", line 11, in baz
    return quix()
  File "H:\SBrunning\Python\ClassScope.py", line 9, in quix
    return self.bar
NameError: There is no variable named 'self'

Which is fair enough, 'cos self.bar isn't in the global namespace, and nor
is it in baz's namespace. But what do I *do*?

BTW, what I *can't* do is pass self.bar as an argument, 'cos in the real
case I'm defining a function to pass to a re.sub.

I-used-foo-so-Tim-won't-help-ly-yrs,
Simon Brunning
TriSystems Ltd.
sbrunning at trisystems.co.uk

P.S. The usual apology for the legal tripe.




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