Impossible to install with apt-get - python missing

Solution 1:

Updated
for The following packages have unmet dependencies:

blueman : Depends: libpython3.6 (>= 3.6.0~b2) but it is not going to be installed

you just need installed python3.6 instead python3
try following this commands :

sudo apt-get purge python3.6
sudo apt-get autoremove && sudo apt-get autoclean
sudo apt-get install python3.6*

or you have other version with 3.5 / 3.7, you can run sudo apt-get install libpython3.6=3.6.0~b2

and then reinstall your blueman, with sudo apt-get install --reinstall blueman

Solution 2:

For those who are still stuck on reinstalling Python3 after doing some unholy (to Debian) removal of Python3 (and not using the apt-get remove python3 correctly, I offer this 100% recovery step.

https://stackoverflow.com/a/58980420/4379130

Solution 3:

It is best if you can avoid purging python3.6 (as per other answer)! This will also remove gnome and other essentials.

Check what Python stuff you have:

apt list --installed | grep python

More specifically, this may help:

apt list --installed | grep python | grep xenial

For example, i had to remove these which were from xenial:

sudo apt remove libpython3.6-minimal libpython3.6-stdlib python3.6-minimal