Bugs item #777884, was opened at 2003-07-25 20:22
Message generated for change (Comment added) made by akuchling
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Category: XML
Group: Python 2.3
Status: Open
Resolution: None
Priority: 5
Submitted By: Mark Lesh (leshmark)
Assigned to: Fred L. Drake, Jr. (fdrake)
Summary: minidom.py -- TypeError: object doesn't support slice assig
Initial Comment:
Got the following traceback after upgrading to 2.3c1
Traceback (most recent call last):
File
"/root/alchemy/scripts/cvs/alchemy/alchemy_menu.py",
line 178, in menu_system
a=alchemy.Alchemy(name=name,step='alchemy')
File "/root/alchemy/scripts/cvs/alchemy/alchemy.py",
line 89, in __init__
self.traverseNodes([self.start_node],exclude_tags=["evaporate","info"])
File "/root/alchemy/scripts/cvs/alchemy/alchemy.py",
line 786, in traverseNodes
self.traverseNodes(node.childNodes,exclude_tags)
File "/root/alchemy/scripts/cvs/alchemy/alchemy.py",
line 786, in traverseNodes
self.traverseNodes(node.childNodes,exclude_tags)
File "/root/alchemy/scripts/cvs/alchemy/alchemy.py",
line 786, in traverseNodes
self.traverseNodes(node.childNodes,exclude_tags)
File "/root/alchemy/scripts/cvs/alchemy/alchemy.py",
line 786, in traverseNodes
self.traverseNodes(node.childNodes,exclude_tags)
File "/root/alchemy/scripts/cvs/alchemy/alchemy.py",
line 786, in traverseNodes
self.traverseNodes(node.childNodes,exclude_tags)
File "/root/alchemy/scripts/cvs/alchemy/alchemy.py",
line 786, in traverseNodes
self.traverseNodes(node.childNodes,exclude_tags)
File "/root/alchemy/scripts/cvs/alchemy/alchemy.py",
line 766, in traverseNodes
node.normalize()
File "/usr/lib/python2.3/xml/dom/minidom.py", line
208, in normalize
self.childNodes[:] = L
TypeError: object doesn't support slice assignment
----------------------------------------------------------------------
>Comment By: A.M. Kuchling (akuchling)
Date: 2005-11-22 16:21
Message:
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I can trigger this exception by calling the normalize()
method on a childless DOM node such as Text. A little
script is attached.
The question is: what should normalize() do for a class such
as Text? Looking at the DOM Level 1 specification,
.normalize() is actually part of the Element interface, not
Node, so things like Text.normalize() wouldn't work at all.
One solution: move normalize() onto the Element class.
Possibly backwards-incompatible.
Another solution: add a normalize() method to the Childless
mix-in that raises an exception.
----------------------------------------------------------------------
Comment By: Martin v. Löwis (loewis)
Date: 2003-08-01 03:00
Message:
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user_id=21627
It would definitely help if you could provide more detail on
the nature of the failure. E.g. where did the DOM tree come
from that Alchemy tries to invoke .normalize on, and what is
self.childnodes in the place of the error.
If you could instead submit a small example that allows
reproduction of the error, that would help as well.
----------------------------------------------------------------------
Comment By: Mark Lesh (leshmark)
Date: 2003-08-01 02:20
Message:
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The code worked again after I downgraded to Python 2.2.3. If
you like I can replicate in a shorter and includable code
snippet (I'd need to pop 2.3 back on my box first though)
----------------------------------------------------------------------
Comment By: Martin v. Löwis (loewis)
Date: 2003-07-27 07:10
Message:
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user_id=21627
Are you sure this is a bug in Python, and not in Alchemy?
----------------------------------------------------------------------
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