installing libpython3.4-minimal fails to upgrade: trying to overwrite '/usr/lib/python3.4/_threading_local.py', which is also in package libpython3.4-stdlib

[Richard Mitchell]

Just following the normal apt upgrade process.

ProblemType: Package
DistroRelease: Ubuntu 14.04
Package: libpython3.4-minimal 3.4.2-1+precise1
ProcVersionSignature: Ubuntu 3.13.0-63.103-generic 3.13.11-ckt25
Uname: Linux 3.13.0-63-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.14.1-0ubuntu3.13
Architecture: amd64
Date: Thu Sep 24 10:02:00 2015
DuplicateSignature: package:libpython3.4-minimal:3.4.2-1+precise1:trying to overwrite '/usr/lib/python3.4/_threading_local.py', which is also in package libpython3.4-stdlib:amd64 3.4.2-1+precise1
ErrorMessage: trying to overwrite '/usr/lib/python3.4/_threading_local.py', which is also in package libpython3.4-stdlib:amd64 3.4.2-1+precise1
InstallationDate: Installed on 2013-11-01 (691 days ago)
InstallationMedia: Ubuntu 12.04.3 LTS "Precise Pangolin" - Release amd64+mac (20130820.2)
RelatedPackageVersions:
 dpkg 1.17.5ubuntu5.4
 apt 1.0.1ubuntu2.10
SourcePackage: python3.4
Title: package libpython3.4-minimal 3.4.2-1+precise1 failed to install/upgrade: trying to overwrite '/usr/lib/python3.4/_threading_local.py', which is also in package libpython3.4-stdlib:amd64 3.4.2-1+precise1
UpgradeStatus: Upgraded to trusty on 2014-10-15 (344 days ago)