Apologies for the noise.
Brain in gear....
Begin forwarded message:
> From: Russ Ferriday <ru...@topia.com>
> Date: November 3, 2010 12:47:33 PM PDT
> To: zope-dev <email@example.com>
> Subject: RestrictedPython - inserting variables before doing exec(code)
> Good day!
> I want to pass existing bound variables into the environment of some
> restricted code before running it.
> This is similar to when globals are passed to compile_restricted_function.
> The idea...
> x = 42
> y = 'foo'
> src="""print x*2; print y; return printed"""
> code=compile_restricted(src, '<string>', 'exec')
> code.global['x'] = x # <- just dreaming, here.
> code.global['y'] = y # <- just dreaming, here.
> ans = exec(code) in restricted_globals
> print ans # prints "84\n'foo'\n"
> It's clear that passing in arbitrary objects is not feasible. But what if I'm
> prepared to constrain input to built-in numeric and string types, possibly in
> or with nested dicts?
> In many cases the input will be large integer or float arrays, and I want to
> avoid any nasty
> kludge such as printing those inputs into the top lines of the src ;). The
> src in the demo is a constant,
> but in the application, it's provided by users via a list of pre-defined and
> user-created 'macros'.
> If I'm missing something obvious, flames welcome!
> Russ Ferriday --
> CEO Topia Systems Ltd.
> ru...@topia.com -- +1 (805) 910 7877 -- www.topia.com
Russ Ferriday -- Systems Architect & Entrepreneur
CEO Topia Systems Ltd.
ru...@topia.com -- +1 (805) 910 7877 -- www.topia.com
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