First step is probably to trace imports:

sage -python -v
import sage.all

If that fails, gdb.


On Friday, April 7, 2017 at 1:35:13 PM UTC+2, vdelecroix wrote:
>
> Dear all, 
>
> I have trouble building Sage for the patchbot. My procedure consists 
> just in launching the attached script. It basically 
>
>   1) compile sage 
>   2) install most optional packages except the one for which I know 
> there are some troubles 
>   3) launch the patchbot 
>
> However, after step 2) I end up with a very broken Sage that is 
> immediately killed with no information at all 
>
> $ ./sage 
> ┌────────────────────────────────────────────────────────────────────┐ 
> │ SageMath version 8.0.beta1, Release Date: 2017-04-06               │ 
> │ Type "notebook()" for the browser-based notebook interface.        │ 
> │ Type "help()" for help.                                            │ 
> └────────────────────────────────────────────────────────────────────┘ 
> ┏━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┓ 
> ┃ Warning: this is a prerelease version, and it may be unstable.     ┃ 
> ┗━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┛ 
> Killed 
>
>
> Does anybody have a clue on how I could debug this thing? 
>
> Thanks, 
> Vincent 
>

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