Preparing to unpack .../libjsoncpp0v5_0.10.5-1_amd64.deb ...
Unpacking libjsoncpp0v5:amd64 (0.10.5-1) ...
Selecting previously unselected package libunity-scopes1.0:amd64.
dpkg: considering removing libunity-scopes3:amd64 in favour of libunity-scopes1.0:amd64 ...
dpkg: yes, will remove libunity-scopes3:amd64 in favour of libunity-scopes1.0:amd64
Preparing to unpack .../libunity-scopes1.0_1.0.2+15.10.20150921-0ubuntu1_amd64.deb ...
De-configuring unity-plugin-scopes:amd64 (0.5.4+15.04.20150410.2-0ubuntu1), to allow removal of libunity-scopes3:amd64 (0.6.16+15.04.20150410.3-0ubuntu1) ...
Traceback (most recent call last):
  File "/usr/bin/click", line 86, in <module>
    sys.exit(main())
  File "/usr/bin/click", line 61, in main
    %s""") % commands.help_text())
  File "/usr/lib/python3/dist-packages/click/commands/__init__.py", line 53, in help_text
    mod = load_command(command)
  File "/usr/lib/python3/dist-packages/click/commands/__init__.py", line 45, in load_command
    return importlib.import_module("click.commands.%s" % command)
  File "/usr/lib/python3.4/importlib/__init__.py", line 109, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 2254, in _gcd_import
  File "<frozen importlib._bootstrap>", line 2237, in _find_and_load
  File "<frozen importlib._bootstrap>", line 2226, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 1200, in _load_unlocked
  File "<frozen importlib._bootstrap>", line 1129, in _exec
  File "<frozen importlib._bootstrap>", line 1471, in exec_module
  File "<frozen importlib._bootstrap>", line 321, in _call_with_frames_removed
  File "/usr/lib/python3/dist-packages/click/commands/info.py", line 29, in <module>
    from click.install import DebFile
  File "/usr/lib/python3/dist-packages/click/install.py", line 45, in <module>
    import apt_pkg
ImportError: libapt-pkg.so.4.16: cannot open shared object file: No such file or directory
Error in sys.excepthook:
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/apport_python_hook.py", line 63, in apport_excepthook
    from apport.fileutils import likely_packaged, get_recent_crashes
  File "/usr/lib/python3/dist-packages/apport/__init__.py", line 5, in <module>
    from apport.report import Report
  File "/usr/lib/python3/dist-packages/apport/report.py", line 30, in <module>
    import apport.fileutils
  File "/usr/lib/python3/dist-packages/apport/fileutils.py", line 23, in <module>
    from apport.packaging_impl import impl as packaging
  File "/usr/lib/python3/dist-packages/apport/packaging_impl.py", line 20, in <module>
    import apt
  File "/usr/lib/python3/dist-packages/apt/__init__.py", line 23, in <module>
    import apt_pkg
ImportError: libapt-pkg.so.4.16: cannot open shared object file: No such file or directory

Original exception was:
Traceback (most recent call last):
  File "/usr/bin/click", line 86, in <module>
    sys.exit(main())
  File "/usr/bin/click", line 61, in main
    %s""") % commands.help_text())
  File "/usr/lib/python3/dist-packages/click/commands/__init__.py", line 53, in help_text
    mod = load_command(command)
  File "/usr/lib/python3/dist-packages/click/commands/__init__.py", line 45, in load_command
    return importlib.import_module("click.commands.%s" % command)
  File "/usr/lib/python3.4/importlib/__init__.py", line 109, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 2254, in _gcd_import
  File "<frozen importlib._bootstrap>", line 2237, in _find_and_load
  File "<frozen importlib._bootstrap>", line 2226, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 1200, in _load_unlocked
  File "<frozen importlib._bootstrap>", line 1129, in _exec
  File "<frozen importlib._bootstrap>", line 1471, in exec_module
  File "<frozen importlib._bootstrap>", line 321, in _call_with_frames_removed
  File "/usr/lib/python3/dist-packages/click/commands/info.py", line 29, in <module>
    from click.install import DebFile
  File "/usr/lib/python3/dist-packages/click/install.py", line 45, in <module>
    import apt_pkg
ImportError: libapt-pkg.so.4.16: cannot open shared object file: No such file or directory
dpkg: error processing archive /var/cache/apt/archives/libunity-scopes1.0_1.0.2+15.10.20150921-0ubuntu1_amd64.deb (--unpack):
 subprocess installed pre-removal script returned error exit status 1