Viewing variables in memory

asked 2013-11-15 03:06:23 +0100

jaia
164 ●10 ●14 ●23

Does Sage provide any way to see which variables and user-defined functions are currently in memory, like the ls() command in R?

answered 2013-11-15 04:51:54 +0100

gundamlh
167 ●15 ●21 ●29

sage: a,b,c,d = var('a,b,c,d')
sage: who
a       b       c       d
sage: whos
Variable   Type          Data/Info
----------------------------------
a          Expression    a
b          Expression    b
c          Expression    c
d          Expression    d

Is it what you want?

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Yes, but it's not working on my system (Sage 5.12 running on Ubuntu 13.10.) I just get a name error.

jaia ( 2013-11-15 13:06:18 +0100 )edit

Sorry, I have no idea about that.. my sage: 'Sage Version 5.10, Release Date: 2013-06-17' on openSuSE 12.3

gundamlh ( 2013-11-15 14:00:57 +0100 )edit

This is not a question of versions, `who` and `whos` are specific to ipython (the command line), they do not work in the notebook.

tmonteil ( 2013-11-16 17:52:40 +0100 )edit

That would be a great feature to have. I can definitely see using it to debug student (and my own) code.

jaia ( 2013-11-17 04:14:50 +0100 )edit

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