bwidget software package provides Extension widgets for Tcl/Tk, you can install in your Ubuntu 16.04 LTS (Xenial Xerus) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install bwidget
bwidget is installed in your system.
Make ensure the bwidget package were installed using the commands given below,
$ sudo dpkg-query -l | grep bwidget *
You will get with bwidget package name, version, architecture and description in a table
| Distro | Ubuntu 16 04 lts xenial xerus |
| Section | Libraries |
| Package | bwidget |
| Version | 1.9.10-1 |
| Description | Extension widgets for Tcl/Tk |
| Sub Section | Libs |