# apt-get install python3.4
python3.4 is already the newest version.
# python3 --version
Python 3.4.3
# dpkg -l python3.4
ii python3.4 3.4.3-1ubuntu1~14.0
# apt-get install apache2
...
# apt-get install libapache2-mod-wsgi-py3
The following packages have unmet dependencies:
libapache2-mod-wsgi-py3 : Depends: libpython3.4 (>= 3.4~b1) but it is not going to be installed
E: Unable to correct problems, you have held broken packages.
Steps to reproduce (using a docker container):
$ docker pull ubuntu:trusty
$ docker run --rm -it ubuntu:trust /bin/bash
# lsb_release -rd
Description: Ubuntu 14.04.3 LTS
Release: 14.04
# apt-get update
# apt-get install python3.4
python3.4 is already the newest version.
# python3 --version
Python 3.4.3
# dpkg -l python3.4
ii python3.4 3.4.3-1ubuntu1~14.0
# apt-get install apache2
...
# apt-get install libapache2- mod-wsgi- py3 mod-wsgi- py3 : Depends: libpython3.4 (>= 3.4~b1) but it is not going to be installed
The following packages have unmet dependencies:
libapache2-
E: Unable to correct problems, you have held broken packages.