package:python3:3.5.1-4 Setting up python3.5-minimal (3.5.3-1) ... Traceback (most recent call last): File "/usr/lib/python3.5/py_compile.py", line 6, in import importlib._bootstrap_external File "/usr/lib/python3.5/importlib/__init__.py", line 57, in import types File "/usr/lib/python3.5/types.py", line 166, in import functools as _functools File "/usr/lib/python3.5/functools.py", line 23, in from weakref import WeakKeyDictionary File "/usr/lib/python3.5/weakref.py", line 12, in from _weakref import ( ImportError: cannot import name '_remove_dead_weakref' dpkg: error processing package python3.5-minimal (--configure): subprocess installed post-installation script returned error exit status 1