[XML-SIG] [ pyxml-Bugs-843101 ] dom toxml raises exception with xmlns=''

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Bugs item #843101, was opened at 2003-11-16 12:02
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Category: None
Group: None
Status: Open
Resolution: None
Priority: 5
Submitted By: Fabio Forno (sciasbat)
Assigned to: Nobody/Anonymous (nobody)
Summary: dom toxml raises exception with xmlns=''

Initial Comment:
If I parse am xml document wich at some points resets
the default namespace to the empty string, i.e. 
doc=minidom.parseString("<a xmlns=''><b/></a>")
then, if I try to convert it back to xml with
doc.toxml() I get this exception:
File "<stdin>", line 1, in ?
  File
"/usr/lib/python2.3/site-packages/_xmlplus/dom/minidom.py",
line 47, in toxml
    return self.toprettyxml("", "", encoding)
  File
"/usr/lib/python2.3/site-packages/_xmlplus/dom/minidom.py",
line 59, in toprettyxml
    self.writexml(writer, "", indent, newl, encoding)
  File
"/usr/lib/python2.3/site-packages/_xmlplus/dom/minidom.py",
line 1739, in writexml
    node.writexml(writer, indent, addindent, newl)
  File
"/usr/lib/python2.3/site-packages/_xmlplus/dom/minidom.py",
line 816, in writexml
    _write_data(writer, attrs[a_name].value)
  File
"/usr/lib/python2.3/site-packages/_xmlplus/dom/minidom.py",
line 304, in _write_data
    data = data.replace("&", "&amp;").replace("<", "&lt;")
AttributeError: 'NoneType' object has no attribute
'replace'

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