[Python-Dev] Guarantee ordered dict literals in v3.7? (original) (raw)

Stephen J. Turnbull turnbull.stephen.fw at u.tsukuba.ac.jp
Tue Dec 19 11:49:36 EST 2017

Nathaniel Smith writes:

To make sure I understand, do you actually have a script like this, or is this hypothetical?

I have a couple of doctests that assume that pprint will sort by key, yes. It makes the tests look quite a bit nicer by pprinting the output, and I get sorting (which matters for some older Pythons) for free. (I admit I don't actually use those tests with older Pythons, but the principle stands.)

I don't see why we don't do the obvious, namely add the option to use "native" order to the PrettyPrinter class, with the default being backward compatible.

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