On 1/16/12 10:57 AM, Chris Angelico wrote:
On Mon, Jan 16, 2012 at 9:22 PM, Eelco wrote:
What you want, conceptually, is a
sorted list of the sortable entries, and a seperate list of the
unsorted entries. Translated into code, the most pure solution would
be to filter out the nanas/nulls in the
On Mon, Jan 16, 2012 at 9:22 PM, Eelco wrote:
> What you want, conceptually, is a
> sorted list of the sortable entries, and a seperate list of the
> unsorted entries. Translated into code, the most pure solution would
> be to filter out the nanas/nulls in their own list first, and then
> sort the
On 13 jan, 20:04, Ethan Furman wrote:
> With NaN, it is possible to get a list that will not properly sort:
>
> --> NaN = float('nan')
> --> spam = [1, 2, NaN, 3, NaN, 4, 5, 7, NaN]
> --> sorted(spam)
> [1, 2, nan, 3, nan, 4, 5, 7, nan]
>
> I'm constructing a Null object with the semantics that if
On 13 jan, 20:04, Ethan Furman wrote:
> With NaN, it is possible to get a list that will not properly sort:
>
> --> NaN = float('nan')
> --> spam = [1, 2, NaN, 3, NaN, 4, 5, 7, NaN]
> --> sorted(spam)
> [1, 2, nan, 3, nan, 4, 5, 7, nan]
>
> I'm constructing a Null object with the semantics that if
On Fri, 13 Jan 2012 11:04:48 -0800, Ethan Furman wrote:
> With NaN, it is possible to get a list that will not properly sort:
>
> --> NaN = float('nan')
> --> spam = [1, 2, NaN, 3, NaN, 4, 5, 7, NaN] --> sorted(spam)
> [1, 2, nan, 3, nan, 4, 5, 7, nan]
>
> I'm constructing a Null object with the
On 13/01/2012 19:58, Chris Angelico wrote:
On Sat, Jan 14, 2012 at 6:04 AM, Ethan Furman wrote:
So I am strongly leaning towards implementing the comparisons such that Null
objects are less than other objects so they will always sort together.
This is a perfectly plausible view, and is the
On Sat, Jan 14, 2012 at 6:04 AM, Ethan Furman wrote:
> So I am strongly leaning towards implementing the comparisons such that Null
> objects are less than other objects so they will always sort together.
This is a perfectly plausible view, and is the one adopted by SQL (I'm
pretty sure the "NULL
With NaN, it is possible to get a list that will not properly sort:
--> NaN = float('nan')
--> spam = [1, 2, NaN, 3, NaN, 4, 5, 7, NaN]
--> sorted(spam)
[1, 2, nan, 3, nan, 4, 5, 7, nan]
I'm constructing a Null object with the semantics that if the returned
object is Null, it's actual value is
