[Python-Dev] PEP 557: Data Classes

Barry Warsaw barry at python.org
Mon Sep 11 23:21:30 EDT 2017

On Sep 11, 2017, at 19:16, Guido van Rossum <guido at python.org> wrote:
> Or we could just have two arguments, eq=<bool> and order=<bool>, and some rule so that you only need to specify one or the other but not both. (E.g. order=True implies eq=True.) That seems better than needing new constants just for this flag.

You’d have to disallow the combination `order=True, eq=False` then, right?  Or would you ignore eq for any value of order=True?  Seems like a clumsier API than a single tri-value parameter.  Do the module constants bother you that much?


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