package python3-tk (not installed) failed to install/upgrade: trying to overwrite '/usr/lib/python3.6/tkinter/__init__.py', which is also in package libpython3.6-stdlib:amd64 3.6.6-1+xenial1

[sk shamim]

Could you look at the issue

ProblemType: Package
DistroRelease: Ubuntu 18.04
Package: python3-tk (not installed)
ProcVersionSignature: Ubuntu 4.15.0-29.31-generic 4.15.18
Uname: Linux 4.15.0-29-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.4
Architecture: amd64
Date: Sat Sep 29 21:07:53 2018
ErrorMessage: trying to overwrite '/usr/lib/python3.6/tkinter/__init__.py', which is also in package libpython3.6-stdlib:amd64 3.6.6-1+xenial1
InstallationDate: Installed on 2017-11-27 (312 days ago)
InstallationMedia: Xubuntu 16.04.3 LTS "Xenial Xerus" - Release amd64 (20170801)
Python3Details: /usr/bin/python3.6, Python 3.6.6, python3-minimal, 3.6.5-3ubuntu1
PythonDetails: /usr/bin/python2.7, Python 2.7.15rc1, python-minimal, 2.7.15~rc1-1
RelatedPackageVersions:
 dpkg 1.19.0.5ubuntu2
 apt 1.6.3ubuntu0.1
SourcePackage: python3-stdlib-extensions
Title: package python3-tk (not installed) failed to install/upgrade: trying to overwrite '/usr/lib/python3.6/tkinter/__init__.py', which is also in package libpython3.6-stdlib:amd64 3.6.6-1+xenial1
UpgradeStatus: Upgraded to bionic on 2018-09-25 (10 days ago)

[Matthias Klose (doko)]

libpython3.6-stdlib:amd64 3.6.6-1+xenial1 is not a package from the distro. You should report that issue to the PPA owner who provided these packages.