[issue5166] ElementTree and minidom don't prevent creation of not well-formed XML

[Fredrik Lundh]

Fredrik Lundh <fredrik at effbot.org> added the comment:

For ET, that's very much on purpose.  Validating data provided by every 
single application would kill performance for all of them, even if only a 
small minority would ever try to serialize data that cannot be represented 
in XML.

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue5166>
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