On 12/10/2013 11:43 AM, Jay Pipes wrote:
On 12/10/2013 11:26 AM, Alex Gaynor wrote:
>>> from flufl.enum import IntEnum
>>> class A(IntEnum):
... a = 3
...
>>> A.a
<EnumValue: A.a [value=3]>
If the __repr__ is *really* the only value of IntEnum, I'm less than
impressed.
-jay
On Tue, Dec 10, 2013 at 8:23 AM, Jay Pipes <jaypi...@gmail.com
<mailto:jaypi...@gmail.com>> wrote:
On 12/10/2013 09:55 AM, Adam Young wrote:
On 12/10/2013 05:24 AM, Flavio Percoco wrote:
On 09/12/13 19:45 -0800, Alex Gaynor wrote:
Would it make sense to use the `enum34` package, which
is a backport
of teh
enum package from py3k?
+1
This is what we were using in Marconi.
So... they seem to be doing something different from Flufl, as
IntEnums
are not working the same way. I wonder if it is just update
lag, and
Flufl is the Upstream for the changes.
With only a change to the import and requirements, it builds and
runs,
but raises:
Traceback (most recent call last):
File "keystone/tests/test_revoke.__py", line 65, in
test_list_is_sorted
valid_until=valid_until))
File "keystone/contrib/revoke/core.__py", line 74, in
__init__
setattr(self, k, v)
File "keystone/contrib/revoke/core.__py", line 82, in
scope_type
self._scope_type = ScopeType[value]
File
"/opt/stack/keystone/.venv/__lib/python2.7/site-packages/__enum/__init__.py",
line
352, in __getitem__
return cls._member_map_[name]
KeyError: 1
This seems to say that you cannot access an IntEnum as an
integer, which
just seems broken.
What precisely is the benefit of an IntEnum? From the example in the
flufl.enum docs:
>>> from flufl.enum import IntEnum
>>> class Animals(IntEnum):
... ant = 1
... bee = 2
... cat = 3
>>> int(Animals.bee)
2
Wow. That is so amazing. Thank goodness there is a library for that.
Oh wait... I can do exactly the same thing without flufl.enum or any
other library:
>>> class Animals:
... ant = 1
... bee = 2
... cat = 3
...
>>> int(Animals.bee)
2
The IntEnum is my new definition of the most worthless class ever
invented in the Python ecosystem -- taking the place of
zope.interface on my personal wall of worthlessness.
Best,
-jay
Jay, It is the other way around: How do you go from an integer to one
of the pre-defined values?
I want 1, 2, 3, and 4 to be valid, but not 0 or 6, and each to map to
both a Symbolic and a text based representation.
In the database store 1, 2, 3, 4
From the outside world I want to parse "user, project, domain" etc.
from text parse "user, project, domain, trust"
Instead of having to to an explicit translation. Doing it once is no
big deal. It is the need to do it for every enumerated field in
Keystone that made me look into how to do a standardized enumeration.
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