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Problems with the darmonpoints package/Error: No module named util

asked 2016-03-22 13:41:03 -0500

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I am a first-time user of sage, so please excuse me if the following question appears stupid to you more experienced users: I want to do some calculations on Darmon points, and for that purpose, I want to use the following package on sagecloud: https: // / mmasdeu / darmonpoints

I installed it, but I cannot do any calculations with it. For instance, if I type the following command

sage: darmon_point(7,EllipticCurve('35a1'),41,20)

it answers: Error: No module named 'util'. Thanks in advance.

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I concur that there are no obvious instructions on the site. Probably you just download the whole thing and then run in that directory.

kcrisman gravatar imagekcrisman ( 2016-03-22 19:21:42 -0500 )edit

In general, do not check the "community wiki" box when asking questions. The "community wiki" feature is for questions about ask-sage itself, rather than questions about Sage.

slelievre gravatar imageslelievre ( 2016-03-24 01:13:23 -0500 )edit

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answered 2016-03-27 10:17:20 -0500

I agree with @kcrisman: you download it and run Sage from that directory. Then you do

%runfile darmonpoints.sage

and if you're me, you get

RuntimeError: unable to start magma

Looking at the README.rst file, I see

For most operations one does need to have Magma installed, although we do hope that in the future Sage will include the required functionality.
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I have Magma installed.

hlmencken gravatar imagehlmencken ( 2016-05-21 02:38:51 -0500 )edit

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Asked: 2016-03-22 13:41:03 -0500

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Last updated: Mar 27 '16