On 05/04/2013 04:33 AM, Antoine Pitrou wrote:
On Sat, 4 May 2013 16:42:08 +1000
Nick Coghlan <ncogh...@gmail.com> wrote:
On Sat, May 4, 2013 at 4:10 PM, Georg Brandl <g.bra...@gmx.net> wrote:
Am 04.05.2013 01:22, schrieb Antoine Pitrou:
On Sat, 04 May 2013 11:15:17 +1200
Greg Ewing <greg.ew...@canterbury.ac.nz> wrote:
Eli Bendersky wrote:
I'm just curious what it is about enums that sets everyone on a "let's
make things safer" path. Python is about duck typing, it's absolutely
"unsafe" in the static typing sense, in the most fundamental ways
imaginable.
This isn't about catching bugs in the program, it's
about validating user input. That's a common enough
task that it deserves to have a convenient way to
do it correctly.
+1. An enum is basically a bidirectional mapping between some raw
values and some "nice" instances, so it deserves a well-defined lookup
operation in each direction.
As I see it, there are 3 possible ways forward here:
4. Offer classmethods named Enum.by_name() and Enum.by_value().
Simple and explicit.
And then you can't have enum items named by_name and by_value.
--
~Ethan~
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