[bug#28676] [PATCH 2/4] gnu: Add python-linecache2.

[Leo Famulari]

On Tue, Oct 03, 2017 at 03:19:11AM +0200, Cyril Roelandt wrote:
> * gnu/packages/python.scm (python-linecache2, python2-linecache2): New
>   variables.

> +    (synopsis "Backports of the linecache module")
> +    (description
> +      "The linecache module allows one to get any line from any file, while
> +attempting to optimize internally, using a cache, the common case where many
> +lines are read from a single file.")

Can you add the details of what this is ported from, and what it's
ported to? That will make it easier to know when we can remove it later
on, once everything is updated. And the same for the other backport
package.