Python 2 had been in early 2020 to reach EOL phase (End of Life), Ubuntu and Debian developers continued commitment from the operating system to remove Python 2 work package will continue the transition to Python 3 is no longer maintained or removed packages.
Ubuntu / Debian project developer Matthias Klose has been coordinating most of the Python Debian Ubuntu and 2 to remove the work, and provide another update on this issue. To date, Ubuntu 20.04 archive is no longer available libpython-dev, python, python-minimal and other software packages as part of a package python-defaults.
Although python2-minimal and python2 other * package to meet dependencies not yet compatible with the rest of Python 3 packages, but these packages will not be stored in the Ubuntu "Focal" file. It is expected to provide a new point to the python Python 2 of python-pointing-to-python2 package Focal warehouse. For details, see Ubuntu-devel for more information.
The ultimate goal is the timely Python 2 will be completely removed in version Ubuntu 20.04 released in April, as this is the need to maintain long-term support version for many years. But in the Universe archive will not offer some of the residual support for Python 2 Python 3 package.