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From: Stefan Monnier <monnier@iro.umontreal.ca>
Newsgroups: gmane.emacs.help
Subject: Re: Show who is requiring
Date: Mon, 19 Nov 2012 09:59:11 -0500
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> I tried using (current-buffer) to get the name of the "source" package
> (i.e., the one which makes the `require' request), but that's
> wrong. Any idea how to get the name of the "caller" package?

IIUC you want load-file-name.


        Stefan