package python3-networkx (not installed) failed to install/upgrade: Versuch, »/usr/share/doc/python-networkx/examples/basic/read_write.py« zu überschreiben, welches auch in Paket python-networkx 1.8.1-0ubuntu3 ist

There seems to be a package content conflict between python-networkx and python3-networkx.

ProblemType: Package
DistroRelease: Ubuntu 14.04
Package: python3-networkx (not installed)
ProcVersionSignature: Ubuntu 3.13.0-39.66-generic 3.13.11.8
Uname: Linux 3.13.0-39-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.5
Architecture: amd64
Date: Tue Nov 25 16:30:58 2014
DuplicateSignature: package:python3-networkx:(not installed):Versuch, »/usr/share/doc/python-networkx/examples/basic/read_write.py« zu überschreiben, welches auch in Paket python-networkx 1.8.1-0ubuntu3 ist
ErrorMessage: Versuch, »/usr/share/doc/python-networkx/examples/basic/read_write.py« zu überschreiben, welches auch in Paket python-networkx 1.8.1-0ubuntu3 ist
InstallationDate: Installed on 2013-07-20 (493 days ago)
InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
SourcePackage: python-networkx
Title: package python3-networkx (not installed) failed to install/upgrade: Versuch, »/usr/share/doc/python-networkx/examples/basic/read_write.py« zu überschreiben, welches auch in Paket python-networkx 1.8.1-0ubuntu3 ist
UpgradeStatus: Upgraded to trusty on 2014-05-03 (205 days ago)