Re: turtle coordinates: Y increase downards - as in most graphics API?

Dear Carol,

I apologize for letting my frustration show in this way, in a public forum.

André

On Mon, Jun 18, 2018 at 1:01 PM Carol Willing <
[email protected]> wrote:

> Hi Andre,
>
> I'm sorry that you did not like my response when I was triaging all of the
> open Turtle issues.
>
> I am happy to change the status back to open. All that you needed to do
> was ask politely and give me a chance, as a volunteer, to have the time to
> do so.
>
> Regards,
>
> Carol
>
> On Jun 17, 2018, at 1:41 PM, Andre Roberge <[email protected]>
> wrote:
>
> So, a little over 3 years after I submitted a bug report (see previous
> conversation below) **with a fix** so that no one would have to explain why
> "right()" could result in a turtle turning left, and vice-versa, my
> submission was refused and the bug report was closed with the following
> explanation:
>
> "
>
> I'm closing this issue since introducing this suggested change would impact teaching materials and resources that have already been published. This would be a change that would break compatibility.
>
> "
>
> I'm curious: does anyone on the edu-sig list has written teaching material for the turtle module that sets world coordinates such that left and right are reversed? If so, how do you explain it to students?
>
>
> Rant: This is the third time that I submit either a bug report for cPython **with** a proposed fix, or simply a fix for an existing bug report and that it is either rejected or dismissed with no alternative solution proposed.  Thankfully, the folks here on edu-sig have been much more supportive since I joined, almost 15 years ago. /rant
>
>
> André
>
>
> On Fri, Mar 13, 2015 at 12:48 PM Andre Roberge <[email protected]>
> wrote:
>
>>
>>
>> On Fri, Mar 13, 2015 at 8:52 AM, Jurgis Pralgauskis <
>> [email protected]> wrote:
>>
>>> Hi,
>>>
>>> usually in computer graphics Y is counted to increase downwards.
>>> I casn do it with:     setworldcoordinates(0, 400, 600, 0)
>>>
>>> but then, "right(..)" turns to the left :/
>>>
>>>
>>> I could swap:
>>> right, left = left, right
>>>
>>> but on errror I get a bit misleading message
>>>
>>> >>> right()
>>> Traceback (most recent call last):
>>>   File "<pyshell#10>", line 1, in <module>
>>>     right()
>>> TypeError: left() takes exactly 1 argument (0 given)
>>>
>>> I thought to make this hack for kids, so better clearer error msgs...
>>>
>>
>>> Any Ideas?
>>>
>>
>> http://bugs.python.org/issue23660  (includes a proposed "permanent"
>> fix).
>>
>> André
>>
>>
>>
>>> Thanks :)
>>> --
>>> Jurgis Pralgauskis
>>> tel: 8-616 77613;
>>> Don't worry, be happy and make things better ;)
>>> http://galvosukykla.lt
>>>
>>> _______________________________________________
>>> Edu-sig mailing list
>>> [email protected]
>>> https://mail.python.org/mailman/listinfo/edu-sig
>>>
>>>
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>
>

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