Bugs item #1124295, was opened at 2005-02-16 16:34
Message generated for change (Comment added) made by tim_one
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Category: Python Interpreter Core
Group: Python 2.4
Status: Closed
Resolution: Fixed
Priority: 8
Submitted By: Tres Seaver (tseaver)
Assigned to: Michael Hudson (mwh)
Summary: Function's __name__ no longer accessible in restricted mode
Initial Comment:
This change breaks an obscure bit of Zope's security
machinery,
which uses the __name__ of a function to construct the
synthetic
attribute name under which the roles for a method are
stored.
$ ../bin/python2.3
Python 2.3.4 (#3, Jan 27 2005, 10:46:13)
[GCC 3.3.4 (Debian 1:3.3.4-9ubuntu5)] on linux2
Type "help", "copyright", "credits" or "license" for
more information.
>>> code = """... def func():
... pass
... print func.__name__
... """
>>> exec code
func
>>> globs = {'__builtins__':{}}
>>> exec code in globs
func
>>> ^D
$ ../bin/python2.4
Python 2.4 (#1, Feb 16 2005, 13:11:02)
[GCC 3.3.4 (Debian 1:3.3.4-9ubuntu5)] on linux2
Type "help", "copyright", "credits" or "license" for
more information.
>>> code = """... def func():
... pass
... print func.__name__
... """
>>> exec code
func
>>> globs = {'__builtins__':{}}
>>> exec code in globs
Traceback (most recent call last):
File "<stdin>", line 1, in ?
File "<string>", line 3, in ?
RuntimeError: function attributes not accessible in
restricted mode
>>> ^D
----------------------------------------------------------------------
>Comment By: Tim Peters (tim_one)
Date: 2005-02-17 10:55
Message:
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Thanks, Michael! It _looked_ like a copy-paste glitch <wink>.
I've confirmed that the specific failing Zope test works with
current release24-maint branch.
----------------------------------------------------------------------
Comment By: Michael Hudson (mwh)
Date: 2005-02-17 05:44
Message:
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Fixed on HEAD in
Objects/funcobject.c revision 2.68
Lib/test/test_funcattrs.py revision 1.17
and on 24-maint in
Objects/funcobject.c revision 2.67.2.1
Lib/test/test_funcattrs.py revision 1.16.2.1
Copy and paste are evil...
----------------------------------------------------------------------
Comment By: Michael Hudson (mwh)
Date: 2005-02-17 05:32
Message:
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Oops. My fault, easy to fix.
----------------------------------------------------------------------
Comment By: Tim Peters (tim_one)
Date: 2005-02-16 16:58
Message:
Logged In: YES
user_id=31435
Assigned to me, and boosted priority, since this should be
addressed for 2.4.1.
----------------------------------------------------------------------
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