[issue34160] ElementTree not preserving attribute order

[Raymond Hettinger]

Raymond Hettinger <raymond.hettinger at gmail.com> added the comment:

One other thought:  We should add a note to the docs for all of the serialization formats saying that we specifically disclaim that they will always generate exactly the same output byte-for-byte.  When Serhiy made some small optimizations to the encoding of pickles, it would have broken any test that checked byte-level equality rather than semantic level equality (checked by making sure the pickle/unpickle steps would round-trip without loss of information).

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue34160>
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