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Wed Apr 13 11:03:43 CEST 2005 · https://mail.python.org/pipermail/python-dev/2005-April/052653.html

On Sun, 10 Apr 2005, Eyal Lotem wrote:
> It may be really hard to get it right, unless we are overlooking some simple
> solution.

To "get it right", you at least need to know exactly what your
operators mean.  I messed up because i failed to realize that
'==' can be redefined, and 'in' depends on '==' to work properly.

> What about implementing the facet in C? This could avoid the class of
> problems you have just mentioned.

I don't think that's a good solution.  A facet is just one basic
programming pattern that you can build in a capability system; it
would be silly to have to go back to C every time you wanted to
build some other construct.  A better way would be to start with
capabilities that behave simply and correctly; then you can build
whatever you want.

-- ?!ng

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[Python-Dev] Security capabilities in Python