Ron Garret wrote:
Note that you don't need the class redirection:

py> ref('')
Traceback (most recent call last):
  File "<interactive input>", line 1, in ?
TypeError: cannot create weak reference to 'str' object

But I don't know why strings aren't valid arguments to ref...

None of the native types (int, float, list, tuple, etc.) can have weak references, but wrapping them in a class is supposed to get around that. And it does -- for all classes except str.

Interesting. Is the wrapping thing documented somewhere? I didn't see it in the documentation for weakref.ref (though I have been known to be blind occasionally) ;)


STeVe
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