Hi Steve, sorry for my late response. I haven't check my mails for a while.
I think my problem started when I tried to update my python to version 3.6. Meanwhile I have reinstalled python 3.5. When I try to install the debian module I get: ~$ sudo pip3 install debian Traceback (most recent call last): File "/usr/local/bin/pip3", line 7, in <module> from pip import main File "/usr/local/lib/python3.5/dist-packages/pip/__init__.py", line 43, in <module> from pip.utils import get_installed_distributions, get_prog File "/usr/local/lib/python3.5/dist-packages/pip/utils/__init__.py", line 27, in <module> from pip._vendor import pkg_resources File "/usr/local/lib/python3.5/dist-packages/pip/_vendor/pkg_resources/__init__.py", line 3018, in <module> @_call_aside File "/usr/local/lib/python3.5/dist-packages/pip/_vendor/pkg_resources/__init__.py", line 3004, in _call_aside f(*args, **kwargs) File "/usr/local/lib/python3.5/dist-packages/pip/_vendor/pkg_resources/__init__.py", line 3046, in _initialize_master_working_set dist.activate(replace=False) File "/usr/local/lib/python3.5/dist-packages/pip/_vendor/pkg_resources/__init__.py", line 2578, in activate declare_namespace(pkg) File "/usr/local/lib/python3.5/dist-packages/pip/_vendor/pkg_resources/__init__.py", line 2152, in declare_namespace _handle_ns(packageName, path_item) File "/usr/local/lib/python3.5/dist-packages/pip/_vendor/pkg_resources/__init__.py", line 2092, in _handle_ns _rebuild_mod_path(path, packageName, module) File "/usr/local/lib/python3.5/dist-packages/pip/_vendor/pkg_resources/__init__.py", line 2121, in _rebuild_mod_path orig_path.sort(key=position_in_sys_path) AttributeError: '_NamespacePath' object has no attribute 'sort' -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1756544 Title: package update-notifier-common 3.168.8 failed to install/upgrade: Unterprozess installiertes post-installation-Skript gab den Fehlerwert 1 zurück To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/update-notifier/+bug/1756544/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs