[Patches] [Patch #102808] Export control for modules

[noreply@sourceforge.net]

Patch #102808 has been updated. 

Project: python
Category: core (C code)
Status: Rejected
Submitted by: rumjuggler
Assigned to : gvanrossum
Summary: Export control for modules

Follow-Ups:

Date: 2001-Jan-10 11:17
By: gvanrossum

Comment:
Rejected based on extensive discussion in python-dev.

We'll implement __all__ however; this will be used only by "from...import
*".

Thanks for getting this discussion started!

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Date: 2001-Jan-07 08:14
By: greg_ball

Comment:
How about an alternative syntax: assignment to module.__dict__ (currently
not allowed.)

# module foo.py
constant_number=3
def bar():
	print constant_number
import foo
foo.__dict__={'bar':bar}
# end of module foo

Now attribute access can get only the objects
in the new dict.  However if you really want to,
you can access 

foo.bar.func_globals

since functions defined in foo keep a reference
to their oringinal namespace.  (otherwise this proposal would just break
everything...)

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Date: 2001-Jan-05 21:40
By: nobody

Comment:
Shouldn't it be called "__all__" (for consistency with a similar
functionality in packages)?
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Date: 2001-Jan-05 13:20
By: tim_one

Comment:
+1 on the idea, -1 on the patch.  If PyModule_ExportableName is supposed to
be a new part of the public API, we need docs for it; else it should be
renamed (with a leading underscore).

If it is part of the public API, it needs to sanity-check its arguments
(e.g., at least that m and s aren't NULL -- we'll get a core dump now if
they are); else it should at least assert that they're sane.

Needs a test in any case.
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Date: 2000-Dec-13 05:55
By: gvanrossum

Comment:
Original title was: """modules w/ vbl "__exports__" (lst of strs) have
access ctrl."""

This implements an interesting way of which names are visible outside the
module that defines it: the __exports__ variable contains a list of
exported names.  If it is present, any name not in __exports__ is not
accessible from outside the module (neither through import nor through
direct access (getattr/setattr).

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