pudb python debugging tool. a full-screen, console-based python debugger

I highly recommened pudb, which is a full-screen, console-based visual debugger for Python. The user-interface is nicely designed for python developers.

Here is an example debugging a simple python script:
Introduction to the PuDB Python Debugging Tool

Also, another great tutorial is from Jordi Gutiérrez Hermoso.
Montreal, QC, September 14, 2015 - Jordi Gutiérrez Hermoso presents PuDB, a full-screen, console-based visual debugger for Python.
An interesting comment from the speaker:
> Everyone should use a debugger
> …
>
> But If pdb is the only debugger you’ve every seen, I won’t blame you not using a debugger
>
> …
> because the debugger is ugly, not because the source code is ugly

To install pudb on Debian/Ubuntu, you can use apt-get to install the package

# for python 2
sudo apt-get -y python-pudb
# for python 3
sudo apt-get -y python3-pudb

# pudb is even better when debugging with ipython
# so that's install ipython
sudo apt-get install ipython