[issue24424] xml.dom.minidom: performance issue with Node.insertBefore()

[Robert Haschke]

Robert Haschke added the comment:

I don't see how to further minimize the checks - all of them are required. I think, the most common uses cases to create a document are appendChild(), which is not affected, and insertBefore() using the same refChild for a while. In that case, the patch gives a tremendous speedup.

If you as maintainers don't want to share this improvement with the community, it's your choice and I will be fine with that.

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<http://bugs.python.org/issue24424>
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