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2011-06-21 13:29:38 -0600 asked a question Has anyone looked at nltk in Sage?

The "natural language toolkit", aka nltk, has a home page here and FAQ here. I'm just curious if anyone has spent any time working with it within Sage?

2011-06-06 19:58:20 -0600 commented answer Can you "stop publishing" a previously published worksheet?

The newly released 4.7

2011-06-05 08:23:03 -0600 commented answer Can you "stop publishing" a previously published worksheet?

The one case I checked did get removed. Perhaps you are seeing a copy because someone performed "edit a copy" on the published worksheet and thus got a copy of their own?

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2011-06-03 15:17:04 -0600 answered a question Can you "stop publishing" a previously published worksheet?

I found it! The "stop publishing" interface is part of the "publish" action.

It isn't intuitive because the action is overloaded, but if you open a worksheet marked as "published" and then select the button to publish it, one of the choices is to "stop publishing".

2011-06-03 12:29:24 -0600 commented question Can you "upgrade" an existing user to have admin privileges?

Ok, updated above.

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2011-06-01 15:05:18 -0600 asked a question Can you "upgrade" an existing user to have admin privileges?

I see that users are stored in a users.pickle file in ...sage_nb/ But the API doesn't seem to have a way to change the admin property. Only to get or create them.

This question: http://ask.sagemath.org/question/497/changing-the-name-of-a-notebook-user asks the similar one of changing the name. It appears you have to programmatically delete and re-create the user.

Creating a user is done with add_user() documented here.

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2011-06-01 08:40:48 -0600 asked a question Can you "stop publishing" a previously published worksheet?

As a new user, I thought (but am not sure) I saw a page offer to stop publishing a worksheet but now can't find any reference to that in the documentation or elsewhere. This TRAC entry mentions "stop publishing" and is marked as fixed: http://trac.sagemath.org/sage_trac/ticket/3240

Is this possible?

Can you safely just go into the filesystem and remove ...sagenb/home/pub/n ?