Re-hi,
I made a small fix to the aptsources module (locally on my laptop).
Aptsources comes from the python-apt package.

$ apt-get source python-apt
$ cd python-apt-1.0.1build1/
$ cd aptsources/

# Edit sourceslist.py file.

# Add a make_unique(self, l) function to the SourcesList class.
# Then call make_unique from the refresh() function.
# This will remove duplicate lines while maintaining sort order of the list.

Please see: http://paste.ubuntu.com/12973347/


On Mon, Oct 26, 2015 at 3:43 PM, moma <email address hidden> wrote:

> BTW:
> The --remove option empties both the repository file and its backup copy.
> But the empty files remains in /etc/apt/sources.list.d/ folder.   Is this
> correct?
>
> # Our repository files.
> $ ls -l /etc/apt/sources.list.d/
> -rw-r--r-- 1 root root 207 Out 26 15:41 audio-recorder-ubuntu-ppa-wily.list
> -rw-r--r-- 1 root root 136 Out 26 15:41
> audio-recorder-ubuntu-ppa-wily.list.save
> -------
>
> # Remove a repository. The empty files remain in the system.
> $ sudo add-apt-repository --remove ppa:audio-recorder/ppa
>
> $ ls -l /etc/apt/sources.list.d/
> -rw-r--r-- 1 root root   0 Out 26 15:41 audio-recorder-ubuntu-ppa-wily.list
> -rw-r--r-- 1 root root   0 Out 26 15:41
> audio-recorder-ubuntu-ppa-wily.list.save
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1509702
>
> Title:
>   add-apt-repository adds same repository multiple times
>
> Status in software-properties package in Ubuntu:
>   New
>
> Bug description:
>   Hello,
>   I am running Ubuntu 15.10 and noticed that add-apt-repository adds the
> same source-repository multiple times.
>   I have accidentally run the add-apt command several times.
>
>   $ sudo add-apt-repository  ppa:audio-recorder/ppa
>
>   A screenshot.
>   [url=
> http://bildr.no/view/ZktOZDRI][img]http://bildr.no/thumb/ZktOZDRI.jpeg[/img][/url
> ]
>
>   I have one `audio-recorder-ubuntu-ppa-wily.list` file in /the
>   etc/apt/sources.list.d/  folder:
>
>   $  cat /etc/apt/sources.list.d/audio-recorder-ubuntu-ppa-wily.list
>
>   deb http://ppa.launchpad.net/audio-recorder/ppa/ubuntu wily main
>   # deb-src http://ppa.launchpad.net/audio-recorder/ppa/ubuntu wily main
>   # deb-src http://ppa.launchpad.net/audio-recorder/ppa/ubuntu wily main
>   # deb-src http://ppa.launchpad.net/audio-recorder/ppa/ubuntu wily main
>   -----
>
>   $ lsb_release -a
>   No LSB modules are available.
>   Distributor ID:       Ubuntu
>   Description:  Ubuntu 15.10
>   Release:      15.10     Codename:     wily
>
>   ProblemType: Bug
>   DistroRelease: Ubuntu 15.10
>   Package: software-properties-gtk 0.96.13
>   ProcVersionSignature: Ubuntu 4.2.0-16.19-generic 4.2.3
>   Uname: Linux 4.2.0-16-generic x86_64
>   ApportVersion: 2.19.1-0ubuntu3
>   Architecture: amd64
>   CurrentDesktop: Unity
>   Date: Sat Oct 24 19:43:44 2015
>   InstallationDate: Installed on 2015-10-19 (4 days ago)
>   InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Alpha amd64 (20151017)
>   PackageArchitecture: all
>   SourcePackage: software-properties
>   UpgradeStatus: No upgrade log present (probably fresh install)
>
> To manage notifications about this bug go to:
>
> https://bugs.launchpad.net/ubuntu/+source/software-properties/+bug/1509702/+subscriptions
>



-- 
Sent from my PC, laptop or phone with Ubuntu-Linux.