Martin,

This version of the patch moves name-checking into a separate module, "xml.names".  But for now it is undocumented (intentionally).

Also, DOMImplementation.hasFeature("XMLVersion", v) now returns True for v in ("1.0", "1.1"), and setting doc.xmlVersion to any other value raises NotSupportedErr.  (Both these things are specified in DOM Level 3 Core under the Document.xmlVersion attribute.)  Added a test for this, too.

I didn't make any other changes.  Let me know if I'm wrong about those other two things.

File Added: minidom-level-1-compliance.4.patch