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ImportError after (apparently peaceful) installation

Howdy all,

After install of 10.04 64bit ubuntu (with your help), upon first invocations sage reports: ImportError. Here is the trace back:


import sage.all_cmdline

from sage.all import *

from sage.databases.all import *

from symbolic_data import SymbolicData

from xml.dom.minidom import parse

from xml.dom.xmlbuilder import DOMImplementationLS, DocumentLS

ImportError: cannot import name DOMImplementationLS. Error importing ipy_profile_sage - perhaps you should run %upgrade? WARNING: Loading of ipy_profile_sage failed.

<<well, yes,="" i="" followed="" the="" sage="" advise="" and="" ran="" %upgrade,="" and="" got="" the="" same="" results.="" and,="" if="" i="" disregard="" all="" the="" error="" messages="" and="" proceed="" to="" something="" like:<="" p="">

sage: 3+4

NameError: name 'Integer' is not defined. >> Suggestions??