Here it is (once again, the failure is related to a cython module):
(sage-sh) chapoton@pc-chapoton:sage3$ python3
Python 3.5.1 (default, Apr 7 2017, 12:17:26)
[GCC 5.4.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import sage.all
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/home/chapoton/sage3/local/lib/python3.5/site-packages/sage/all.py",
line 86, in <module>
import sage.misc.lazy_import
ImportError: No module named 'sage.misc.lazy_import'
Le mercredi 19 avril 2017 13:53:20 UTC+2, vdelecroix a écrit :
>
> Indeed, could you try
>
> $ sage -sh
> (sage-sh) $ python3
> >>> import sage.all
>
> Vincent
>
> On 19/04/2017 13:11, Frédéric Chapoton wrote:
> > Hello,
> >
> > I get nothing from "ls local/lib/python2.7/site-packages/sa*"
> >
> > and what looks like a correct full sage
> > in local/lib/python3.5/site-packages/sage
> >
> > The problem may come from "./sage" calling a python2.7 version ?
> >
> > Frederic
> >
> > Le mercredi 19 avril 2017 10:58:53 UTC+2, vdelecroix a écrit :
> >>
> >> Hi Frédéric,
> >>
> >> Can you check what are inside local/lib/python3.5/site-packages/sage
> >>
> >> SAGE_ROOT/local/lib/python2.7/site-packages/sage
> >> SAGE_ROOT/local/lib/python3.5/site-packages/sage
> >>
> >> Vincent
> >>
> >> On 18/04/2017 21:25, Frédéric Chapoton wrote:
> >>> Dear all,
> >>>
> >>> I just managed (using tricks to avoid a few remaining issues in
> >>> cythonization and packages) to get make succeed in building sage with
> >>> SAGE_PYTHON3=yes
> >>> Sadly, but not unexpectedly, sage then crashes at startup. Apparently,
> >> it
> >>> cannot not find/import any cython extension..
> >>>
> >>> Frédéric
> >>>
> >>> Here is a snapshot of the end of compilation and tentative run:
> >>>
> >>> real 61m21.708s
> >>> user 57m46.564s
> >>> sys 1m30.508s
> >>> Sage build/upgrade complete!
> >>> chapoton@icj-laptop:~/sage3$ ./sage
> >>> ┌────────────────────────────────────────────────────────────────────┐
> >>> │ SageMath version 8.0.beta2, Release Date: 2017-04-12 │
> >>> │ Type "notebook()" for the browser-based notebook interface. │
> >>> │ Type "help()" for help. │
> >>> └────────────────────────────────────────────────────────────────────┘
> >>> ┏━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┓
> >>> ┃ Warning: this is a prerelease version, and it may be unstable. ┃
> >>> ┗━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┛
> >>> Forcing sage-location, probably because a new package was installed.
> >>> Updating various hardcoded paths...
> >>> (Please wait at most a few minutes.)
> >>> DO NOT INTERRUPT THIS.
> >>> Done updating paths.
> >>>
> >>>
> >>> **********************************************************************
> >>>
> >>>
> >>> Oops, Sage crashed. We do our best to make it stable, but...
> >>>
> >>>
> >>> For the curious people, the crash log ends with
> >>>
> >>> ---> 39 from sage.structure.sage_object import SageObject
> >>> global sage.structure.sage_object = undefined
> >>> global SageObject = undefined
> >>> 40 from sage.repl.rich_output.output_basic import (
> >>> 41 OutputPlainText, OutputAsciiArt, OutputUnicodeArt,
> >> OutputLatex,
> >>> 42 )
> >>> 43 from sage.repl.rich_output.preferences import
> DisplayPreferences
> >>> 44
> >>> 45
> >>> 46 class DisplayException(Exception):
> >>> 47 """
> >>> 48 Base exception for all rich output-related exceptions.
> >>> 49
> >>> 50 EXAMPLES::
> >>> 51
> >>> 52 sage: from sage.repl.rich_output.display_manager
> import
> >>> DisplayException
> >>> 53 sage: raise DisplayException('foo')
> >>> 54 Traceback (most recent call last):
> >>>
> >>>
> >>> ImportError: No module named 'sage.structure.sage_object'
> >>>
> >>
> >
>
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