Recommended way to switch web2py to Python 3 ?

[Djordje N]

Hello everyone!

I have been using web2py for a couple of years (amazing software, thank you all for building it supporting us newbies!) and it has been running using Python v2.

Now, I would like to switch to Python 3 runtime, but I am not sure what is the proper way.

I am usually installing web2py using the installation script available from here, and it is running under Ubuntu 18.04.

djordje@vmi:~$ python --version
Python 2.7.17
djordje@vmi:~$ python3 --version
Python 3.6.9
djordje@vmi:~$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 18.04.4 LTS
Release:        18.04
Codename:       bionic

I tried to set the default Python version to 3, as explained on this link using:

update-alternatives --remove python /usr/bin/python2
update-alternatives --install /usr/bin/python python /usr/bin/python3 10

and it sets the default Python to v3, but after rebooting the server - web2py still runs with Python v2

Version
2.18.5-stable+timestamp.2019.04.08.04.22.03
(Running on nginx/1.14.0, Python 2.7.17)

Is there a recommended way to set web2py to run with Python 3 on Linux?

Thank you,

Best regards,

Djordje

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