idle-python3.6 is not detectable by Ubuntu Software and does not appear in Nautilus

[SunBear]

idle-python3.6 is not detectable by Ubuntu Software nor is it detectable by Nautilus as an application that can be used to open .py files. This should not be the case. It used to be available in Ubuntu 16.04.Users will need these features to improve work productivity.

**System information:**

$ lsb_release -rd
Description: Ubuntu 18.04.3 LTS
Release: 18.04

$ uname -a
Linux Machine 5.0.0-25-generic #26~18.04.1-Ubuntu SMP Thu Aug 1 13:51:02 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux

$ apt-cache policy idle-python3.6
idle-python3.6:
  Installed: 3.6.8-1~18.04.1
  Candidate: 3.6.8-1~18.04.1
  Version table:
 *** 3.6.8-1~18.04.1 500
        500 http://sg.archive.ubuntu.com/ubuntu bionic-updates/universe amd64 Packages
        500 http://sg.archive.ubuntu.com/ubuntu bionic-updates/universe i386 Packages
        100 /var/lib/dpkg/status
     3.6.5-3 500
        500 http://sg.archive.ubuntu.com/ubuntu bionic/universe amd64 Packages
        500 http://sg.archive.ubuntu.com/ubuntu bionic/universe i386 Packages

[SunBear (sunbear-c22)]

All these packages are having the above mentioned issues:

idle/bionic-updates,bionic-updates 3.6.7-1~18.04 all
idle-python2.7/bionic-updates,bionic-updates,bionic-security,bionic-security 2.7.15-4ubuntu4~18.04 all
idle-python3.6/bionic-updates,bionic-updates,bionic-security,bionic-security 3.6.8-1~18.04.1 all
idle-python3.7/bionic-updates,bionic-updates,bionic-security,bionic-security 3.7.3-2~18.04.1 all
idle3/bionic-updates,bionic-updates 3.6.7-1~18.04 all

[SunBear (sunbear-c22)]

IDLE (using Python-3.6) can be found in gnome-software. But it cannot be found in Nautilus.

Is it because of this issue? http://appstream.ubuntu.com/bionic/universe/issues/idle-python3.6.html?

@Matthias Klumpp mentioned that Python upstream needs to add a metainfo file for IDLE (see https://bugs.launchpad.net/ubuntu/+source/gnome-software/+bug/1841130/comments/2)