On 15/11/2021 20:31, Uwe Brauer wrote:
Advice: don't try to upgrade python on a given Ubuntu distribution!!!!
Anover advice:
1. Avoid unsupported versions of software (Ubuntu-16.04 has only payed
support for more than a year) and localize its usage if there is no
other way.
* reinstall jupyter
#+begin_src
sudo dpkg --purge python3-ptyprocess
sudo -H pip3 install --upgrade --force-reinstall --no-cache-dir jupyter
2. Use venv (virtualenv for Python-2.7) to keep packages installed by
pip isolated from system .deb's.
> I need still 2.7 to compile mercurial, since I rely on some extensions
> for mercurial that do not work under 3.X
Ubuntu-20.04 has (already unsupported) Python-2.7 in addition to 3.8 and
3.9.
It is better to keep primary system up to date and to use containers
(LXC, docker, etc.) or fully virtualized systems for special needs.
