#8327: Implement the universal cyclotomic field, using Zumbroich basis
-----------------------------------------------------+----------------------
Reporter: nthiery | Owner:
Type: enhancement | Status:
needs_work
Priority: major | Milestone: sage-5.0
Component: number fields | Resolution:
Keywords: Cyclotomic field, Zumbroich basis | Work issues: don't
import numpy
Report Upstream: N/A | Reviewers:
Authors: Christian Stump, Simon King | Merged in:
Dependencies: #4539 #10771 #7980 | Stopgaps:
-----------------------------------------------------+----------------------
Comment (by stumpc5):
Replying to [comment:89 davidloeffler]:
> Replying to [comment:88 stumpc5]:
> It is related to your patch, as discussed in the comment thread above.
It is important that Sage '''must not''' import numpy at startup, because
it takes a very long time to load (cf. tickets #11714, #6494, and several
others I think). Your patch causes numpy to be imported at startup;
Nicolas and Simon put in a fair bit of work using {{{lazy_import}}} to
stop this happening (see comments 50-53). You will see that
[attachment:trac_8327-rebased_for_v5.patch] does not need to disable this
test in startup.py as you have done.
Were is my mind, thanks for telling me again! -- The patch attached here
and the one I had on the combinat queue were both changed, I now made
numpy got lazy imported again. I will post the patch as soon as there are
no further test failures.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/8327#comment:90>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
--
You received this message because you are subscribed to the Google Groups
"sage-trac" group.
To post to this group, send email to [email protected].
To unsubscribe from this group, send email to
[email protected].
For more options, visit this group at
http://groups.google.com/group/sage-trac?hl=en.
