I was not able to install any packages due to this virtual box error. So I tried these commands but then also same errors.

sudo apt-get purge virtualbox*



Reading package lists... Done

Building dependency tree

Reading state information... Done

The following packages were automatically installed and are no longer required:

  libgsoap8 libqt4-opengl libvncserver1 linux-headers-4.4.0-62

  linux-headers-4.4.0-62-generic linux-image-4.4.0-62-generic

  linux-image-extra-4.4.0-62-generic linux-signed-image-4.4.0-62-generic

  python3-systemd virtualbox-dkms

Use 'sudo apt autoremove' to remove them.

The following packages will be REMOVED:

  virtualbox*

0 upgraded, 0 newly installed, 1 to remove and 31 not upgraded.

1 not fully installed or removed.

After this operation, 64.1 MB disk space will be freed.

Do you want to continue? [Y/n] y

(Reading database ... 332209 files and directories currently installed.)

Removing virtualbox (5.0.18-dfsg-2build1) ...

  File "/usr/bin/pyclean", line 63

    except (IOError, OSError), e:

                             ^

SyntaxError: invalid syntax

dpkg: error processing package virtualbox (--purge):

 subprocess installed pre-removal script returned error exit status 1

Traceback (most recent call last):

  File "/usr/bin/pycompile", line 35, in <module>

    from debpython.version import SUPPORTED, debsorted, vrepr, 

  File "/usr/share/python/debpython/version.py", line 24, in <module>

    from ConfigParser import SafeConfigParser

ImportError: No module named 'ConfigParser'

dpkg: error while cleaning up:

 subprocess installed post-installation script returned error exit status 1

Errors were encountered while processing:

 virtualbox

E: Sub-process /usr/bin/dpkg returned an error code (1)