Yes, he said a definite no to a built-in. But he expressed a less specific
lack of enthusiasm for collections classes (including Counter, which exists
and which I personally use often).
On Thu, Jul 5, 2018, 1:16 AM Chris Barker wrote:
> On Tue, Jul 3, 2018 at 6:23 AM, David Mertz wrote:
>
>> Gu
StrictVersion from distutils accepts version tags like
1.14.0
1.14.0a1
1.14.0b2
but not
1.14.0rc1 (nor 1.14.0c1).
My suggestion: Add `rc` in the regexp and make it a `prerelease` (the
latter comes for free by the current implementation).
Most package maintainers have adopted the `rc` abbreviati
More than once I've found myself wanting to create a 'sentinel' value. The
most common use case is to differentiate between an argument that has not
been provided, and an argument provided with the value `None`.
This would be solvable by implementing something similar to what JavaScript
calls [`Sy
Hi!
On 2018-07-05 20:38, Flavio Curella wrote:
> More than once I've found myself wanting to create a 'sentinel' value. The
> most common use case is to differentiate between an argument that has not
> been provided, and an argument provided with the value `None`.
I generally do something like
I have also wanted sentinel objects many times. These are often useful
for creating a "Not Specified" default value when explicitly passing
`None` has semantic meaning.
There are a few issues with the `sentinel = object()` code. One is
that they don't repr well so they make debugging harder. Anoth
> What functionality does such a thing actually need?
I think the requirements should be:
* The resulting symbol behave exactly like None. IE: the symbol should not
be an instance of object, but an instance of its own class
* A symbol can optionally be globally unique.
* Two symbols created by the
On Thu, Jul 5, 2018 at 3:26 AM, David Mertz wrote:
> Yes, he said a definite no to a built-in. But he expressed a less specific
> lack of enthusiasm for collections classes (including Counter, which exists
> and which I personally use often).
>
And a Grouping class would do more than Counter, wh
On Thu, Jul 5, 2018 at 1:25 PM, Flavio Curella wrote:
>
>> What functionality does such a thing actually need?
>
> I think the requirements should be:
> * The resulting symbol behave exactly like None. IE: the symbol should not
> be an instance of object, but an instance of its own class
> * A sym
On Thu, Jul 05, 2018 at 02:38:47PM -0500, Flavio Curella wrote:
> More than once I've found myself wanting to create a 'sentinel' value. The
> most common use case is to differentiate between an argument that has not
> been provided, and an argument provided with the value `None`.
[...]
> Is this s
