[Bug 1590660] [NEW] Migrate dependency from py2 to py3, or moving py2 from Depends to Suggests in control file

[Cui Wei]

Public bug reported:

Ubuntu base are supposed to depends on Python3 but Python2, but
openvswitch depends on it and core os must install it for no reason. So
removing OVS dependency of python2 is strongly recommended.

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: openvswitch-common (not installed)
ProcVersionSignature: Ubuntu 4.4.0-22.40-generic 4.4.8
Uname: Linux 4.4.0-22-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
CurrentDesktop: GNOME-Flashback:Unity
Date: Thu Jun  9 14:51:58 2016
JournalErrors:
 Error: command ['journalctl', '-b', '--priority=warning', '--lines=1000'] failed with exit code 1: Hint: You are currently not seeing messages from other users and the system.
       Users in the 'systemd-journal' group can see all messages. Pass -q to
       turn off this notice.
 No journal files were opened due to insufficient permissions.
SourcePackage: openvswitch
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: openvswitch (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug xenial

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https://bugs.launchpad.net/bugs/1590660

Title:
  Migrate dependency from py2 to py3, or moving py2 from Depends to
  Suggests in control file

Status in openvswitch package in Ubuntu:
  New

Bug description:
  Ubuntu base are supposed to depends on Python3 but Python2, but
  openvswitch depends on it and core os must install it for no reason.
  So removing OVS dependency of python2 is strongly recommended.

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: openvswitch-common (not installed)
  ProcVersionSignature: Ubuntu 4.4.0-22.40-generic 4.4.8
  Uname: Linux 4.4.0-22-generic x86_64
  ApportVersion: 2.20.1-0ubuntu2.1
  Architecture: amd64
  CurrentDesktop: GNOME-Flashback:Unity
  Date: Thu Jun  9 14:51:58 2016
  JournalErrors:
   Error: command ['journalctl', '-b', '--priority=warning', '--lines=1000'] failed with exit code 1: Hint: You are currently not seeing messages from other users and the system.
         Users in the 'systemd-journal' group can see all messages. Pass -q to
         turn off this notice.
   No journal files were opened due to insufficient permissions.
  SourcePackage: openvswitch
  UpgradeStatus: No upgrade log present (probably fresh install)

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