Python Install - from source, multiple versions on Ubuntu and switch between versions

I'm on Ubuntu 20.04, but the same method can be applied to previous versions of Ubuntu or Debian. This is a safe and sure way to downgrade, upgrade and switch between Python versions

[viktornikolov]

Thank you! It's feels like a breath of fresh air to see actually useful content on youtube.

[calcyfair]

i liked your voice, and what a pleasure to just follow a tutorial and everything works.... thanks.

[BronzeBagel]

This is legitimately the best video to do with Linux ever. (this saved me years)

[juneroyd.quinimon]

Thank you so much sir, it save me a lot of time using this one!

[m.arehman]

excellent work and very well explained.

[debojyotidey]

The video is very useful. Please improve the quality of the audio. The volume is low otherwise it's smooth.

[williamli]

Near the end after I configur Alternative to select 2 (for 3.7), new Terminals cannot be opened. After I configure the alternative back to 0, new Terminals are able to be opened again. Any ideas how to fix this while being able to default 2 for version 3.7?

[akshatmodi]

Hey dude,
Amazing video, by the way, it went perfectly and my ubuntu works a treat with the newer version of python, is it possible for you to make a video or a written article on how to remove the older versions of python. Just like you, I needed python 3.7 and python 3.6, but now I do not need the python 3.6. How should I remove it? Like I want to literally remove every trace of python 3.6, and I use Ubuntu 20.04. But an amazing video, I followed it to install python 3.6 and 3.7.
Let me know to remove the older versions.
Cheers Mate!

[phillipandrew]

I followed this procedure but when i try to switch python following error occurs update-alternatives: error: no alternatives for python3

[grilledpikachu]

I have both versions now. how to set one specific version permanently? Switching method is not working for me. Please answer.

[silversurfer]

this path seems to lead from one problem to the next. First of all, the TLS/SSL problem, which is picked up in another video on the channel, which actually makes this one directly obsolete again. but after that is fixed it goes on: "Your installed Python is incomplete. Attempting to use lzma compression will result in a RuntimeError." So I wouldn't recommend following that. sorry

[yashbhandaree]

one and only best tutorial : hey i am installing latest version now can you suggest how can i update this when new update is released of python:

[SumitSharanSatsangi]

Thanks for this nice video, I followed it completely and it works whatever you have shown in this video, but can you tell me why pip is not working for the other version of python.

[youssefchahbi]

This is an amazing video. Helped me a lot.
but can somebody help me know how to uninstall the alternative older version.

[Tano]

will pip also follow into the python version?

[davidmilam]

I keep getting the error zipimport.ZipImportError: can't decompress data; zlib not available
when trying to install pip for the python verions.

[sukrishgiri]

my sudo update-alternative had an error
sudo: update: command not found

[ahmadfaisolsuhaimi]

thanks!
Question, any workaround to remove any python that we install manually?

[sukrishgiri]

my sudo update-alternative had an error
sudo: update: command not found
plz help bro

[portinho]

Hi bro.
I tried that procedure 2x and both times my linux mint crashed.
A dark screen and the mouse seens like x.
Nothing works.
Have you any solution for this case?
Linux Mint 21.1 Python3.10.6 as default
Procedure using Python3.11.1
Thanks for your help
Best Regards