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Thu Feb 16 19:44:22 CET 2012 · https://mail.python.org/pipermail/python-dev/2012-February/116575.html

On 17 February 2012 04:55, Antoine Pitrou <solipsis at pitrou.net> wrote:

> But then you're going from a cumbersome situation (where you have to
> import cElementTree and then fallback on regular ElementTree) to an
> even more cumbersome one (where you have to first check the Python
> version, then conditionally import cElementTree, then fallback on
> regular ElementTree).

Well, you can reverse the import so you're not relying on version numbers:

import  xml.etree.ElementTree as ElementTree

try:
    import xml.etree.cElementTree as ElementTree
except ImportError:
    pass

There is a slight cost compared to previously (always importing the python
version) and you'll still be using cElementTree directly until it's
removed, but if/when it is removed you won't notice it.

Tim Delaney
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[Python-Dev] folding cElementTree behind ElementTree in 3.3