$ sudo apt install python3-virtualenv python-pip-whl
Reading package lists... Done
Building dependency tree
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:
The following packages have unmet dependencies:
python3-virtualenv : Depends: python-setuptools-whl but it is not going to be installed
E: Unable to correct problems, you have held broken packages.
$ sudo apt install python-setuptools-whl python-pip-whl
Reading package lists... Done
Building dependency tree
Reading state information... Done
python-setuptools-whl is already the newest version (18.8-1).
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:
The following packages have unmet dependencies:
python-pip-whl : Breaks: python-setuptools-whl (<= 18.8-1) but 18.8-1 is to be installed
Catch 22 - i would suggest to write a bug against python-setuptools-whl or python-pip-whl or both at your wish.