[sage-support] Re: OS X 12.3 intel: scipy fails to build

2022-03-17 Thread Matthias Koeppe
Thanks for testing! I have opened https://trac.sagemath.org/ticket/33522 
for the upgrade

On Thursday, March 17, 2022 at 3:00:24 PM UTC-7 John H Palmieri wrote:

> "./sage -pip install -U pythran" seems to have worked. I checked Sage's 
> pythran log and didn't see anything suspicious, for what that's worth.
>
> On Thursday, March 17, 2022 at 2:34:56 PM UTC-7 Matthias Koeppe wrote:
>
>> It would be worth checking whether "./sage -pip install -U pythran" or 
>> "./sage -pip install -U git+https://github.com/serge-sans-paille/pythran; 
>> fixes this issue
>>
>> On Thursday, March 17, 2022 at 2:01:49 PM UTC-7 John H Palmieri wrote:
>>
>>> Since upgrading to OS X 12.3 a few days ago, along with the 
>>> corresponding Xcode and command line tools, I have been unable to build 
>>> scipy. The end of the log file says
>>>
>>>   Building wheel for scipy (pyproject.toml): finished with status 'error'
>>>   ERROR: Failed building wheel for scipy
>>>
>>> A little before that:
>>>
>>>   
>>> /Users/palmieri/Desktop/Sage/sage_builds/TESTING/sage-9.6.beta5/local/var/lib/sage/venv-python3.10.2/lib/python3.10/site-packages/pythran/pythonic/types/str.hpp:417:12:
>>>  
>>> error: no matching constructor for initialization of 'typename 
>>> str::reverse_iterator' (aka 'reverse_iterator<(anonymous 
>>> namespace)::pythonic::types::string_iterator>')
>>>   return {data->rend()};
>>>  ^~
>>>
>>> Log files attached. I've tried this using all of my installed homebrew 
>>> packages and also using (as you can see in config.log) 
>>> "--with-system-python3=no", same result either way. Any suggestions?
>>>
>>> -- 
>>> John
>>>
>>>

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[sage-support] Re: OS X 12.3 intel: scipy fails to build

2022-03-17 Thread John H Palmieri
"./sage -pip install -U pythran" seems to have worked. I checked Sage's 
pythran log and didn't see anything suspicious, for what that's worth.

On Thursday, March 17, 2022 at 2:34:56 PM UTC-7 Matthias Koeppe wrote:

> It would be worth checking whether "./sage -pip install -U pythran" or 
> "./sage -pip install -U git+https://github.com/serge-sans-paille/pythran; 
> fixes this issue
>
> On Thursday, March 17, 2022 at 2:01:49 PM UTC-7 John H Palmieri wrote:
>
>> Since upgrading to OS X 12.3 a few days ago, along with the corresponding 
>> Xcode and command line tools, I have been unable to build scipy. The end of 
>> the log file says
>>
>>   Building wheel for scipy (pyproject.toml): finished with status 'error'
>>   ERROR: Failed building wheel for scipy
>>
>> A little before that:
>>
>>   
>> /Users/palmieri/Desktop/Sage/sage_builds/TESTING/sage-9.6.beta5/local/var/lib/sage/venv-python3.10.2/lib/python3.10/site-packages/pythran/pythonic/types/str.hpp:417:12:
>>  
>> error: no matching constructor for initialization of 'typename 
>> str::reverse_iterator' (aka 'reverse_iterator<(anonymous 
>> namespace)::pythonic::types::string_iterator>')
>>   return {data->rend()};
>>  ^~
>>
>> Log files attached. I've tried this using all of my installed homebrew 
>> packages and also using (as you can see in config.log) 
>> "--with-system-python3=no", same result either way. Any suggestions?
>>
>> -- 
>> John
>>
>>

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[sage-support] Re: OS X 12.3 intel: scipy fails to build

2022-03-17 Thread Matthias Koeppe
It would be worth checking whether "./sage -pip install -U pythran" or 
"./sage -pip install -U git+https://github.com/serge-sans-paille/pythran; 
fixes this issue

On Thursday, March 17, 2022 at 2:01:49 PM UTC-7 John H Palmieri wrote:

> Since upgrading to OS X 12.3 a few days ago, along with the corresponding 
> Xcode and command line tools, I have been unable to build scipy. The end of 
> the log file says
>
>   Building wheel for scipy (pyproject.toml): finished with status 'error'
>   ERROR: Failed building wheel for scipy
>
> A little before that:
>
>   
> /Users/palmieri/Desktop/Sage/sage_builds/TESTING/sage-9.6.beta5/local/var/lib/sage/venv-python3.10.2/lib/python3.10/site-packages/pythran/pythonic/types/str.hpp:417:12:
>  
> error: no matching constructor for initialization of 'typename 
> str::reverse_iterator' (aka 'reverse_iterator<(anonymous 
> namespace)::pythonic::types::string_iterator>')
>   return {data->rend()};
>  ^~
>
> Log files attached. I've tried this using all of my installed homebrew 
> packages and also using (as you can see in config.log) 
> "--with-system-python3=no", same result either way. Any suggestions?
>
> -- 
> John
>
>

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Re: [sage-support] power of a matrix

2022-03-17 Thread Dima Pasechnik
On Thu, Mar 17, 2022 at 12:23 PM GUSTAVO TERRA BASTOS
 wrote:
>
> Hi !
>
> Given square matrices M, N over large finite fields, is there an easy way to 
> compute the positive integer so that M^i = N ?
>
this is known as a discrete logarithm problem, and no fast algorithms are known.
https://en.wikipedia.org/wiki/Discrete_logarithm

There is however a necessary condition, that M and N commute, i.e.
MN=NM, which is certainly fast
to check.



> Best regards,
> Gustavo
>
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[sage-support] power of a matrix

2022-03-17 Thread GUSTAVO TERRA BASTOS
Hi !

Given square matrices M, N over large finite fields, is there an easy way 
to compute the positive integer so that M^i = N ?

Best regards,
Gustavo   

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