liuxg@liuxg:~$ sudo apt-get install click
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Suggested packages:
  ubuntu-app-launch-tools | upstart-app-launch-tools
The following NEW packages will be installed:
  click
0 upgraded, 1 newly installed, 0 to remove and 11 not upgraded.
Need to get 0 B/29.4 kB of archives.
After this operation, 88.1 kB of additional disk space will be used.
Selecting previously unselected package click.
(Reading database ... 349729 files and directories currently installed.)
Preparing to unpack .../click_0.4.43+16.04.20160203-0ubuntu3_amd64.deb ...
Unpacking click (0.4.43+16.04.20160203-0ubuntu3) ...
Processing triggers for ureadahead (0.100.0-19) ...
Processing triggers for shared-mime-info (1.5-2ubuntu0.1) ...
Unknown media type in type 'all/all'
Unknown media type in type 'all/allfiles'
Processing triggers for man-db (2.7.5-1) ...
Setting up click (0.4.43+16.04.20160203-0ubuntu3) ...
Traceback (most recent call last):
  File "/usr/bin/click", line 37, in <module>
    import click
ImportError: No module named 'click'
dpkg: error processing package click (--configure):
 subprocess installed post-installation script returned error exit status 1
Processing triggers for ureadahead (0.100.0-19) ...
Errors were encountered while processing:
 click
E: Sub-process /usr/bin/dpkg returned an error code (1)