Python version change in Ubuntu

python_ver_chage.md

Python version change in Ubuntu

Reference

• https://linuxconfig.org/how-to-change-from-default-to-alternative-python-version-on-debian-linux

Change python version system-wide

update-alternatives --list python

/usr/bin/python2.7
/usr/bin/python3.4

sudo update-alternatives --config python

There are 2 choices for the alternative python (providing /usr/bin/python).

  Selection    Path              Priority   Status
------------------------------------------------------------
  0            /usr/bin/python2   2         auto mode
  1            /usr/bin/python2   2         manual mode
* 2            /usr/bin/python3   1         manual mode

Press <enter> to keep the current choice[*], or type selection number: 0
update-alternatives: using /usr/bin/python2 to provide /usr/bin/python (python) in auto mode