Upgradation to Python 3.7

Question

I have Ubuntu 19.04 OS and I needed python 3.6 version so I somehow managed to get python3.6 on my device without removing python3.7 but now I would like to revert back to using python3.7. Can anyone suggest how to do it?

"Somehow"? I suppose those details are important. Also it sounds more like a question for AskUbuntu. — a_guest, Mar 24 '20 at 15:36
Does this answer your question? [upgrading default python version or install another python version in Linux](https://stackoverflow.com/questions/18957836/upgrading-default-python-version-or-install-another-python-version-in-linux) — Vasco Cansado Carvalho, Mar 24 '20 at 15:36
There is a similar question here: [post](https://stackoverflow.com/questions/18957836/upgrading-default-python-version-or-install-another-python-version-in-linux) — Vasco Cansado Carvalho, Mar 24 '20 at 15:37

score 1 · Answer 1 · answered Mar 24 '20 at 15:35

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If you've got multiple version of Python installed, you can choose which one to use as default in update-alternatives:

sudo update-alternatives --config python3

, then follow the prompt instructions.

answered Mar 24 '20 at 15:35

0buz

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update-alternatives: error: no alternatives for python3 I am getting this – Subhang V Mar 24 '20 at 15:50
Run this in a terminal: `which python3.6`. Does it return anything? – 0buz Mar 24 '20 at 15:56
It returns this ```/usr/local/bin/python3.6``` – Subhang V Mar 24 '20 at 16:00
And `which python3.7`? – 0buz Mar 24 '20 at 16:01
The same ```/usr/bin/python3.7``` – Subhang V Mar 24 '20 at 16:04
Try this then: `sudo update-alternatives --config python` (without '3' at the end). – 0buz Mar 24 '20 at 16:08
Had already tried that. Got this ```update-alternatives: error: no alternatives for python3``` – Subhang V Mar 24 '20 at 16:10
Let us [continue this discussion in chat](https://chat.stackoverflow.com/rooms/210244/discussion-between-subhang-v-and-0buz). – Subhang V Mar 24 '20 at 16:15

score 1 · Answer 2 · answered Mar 24 '20 at 15:39

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Try using virtual environments, namely anaconda for these kinds of things. I am not aware of any other methods. Anaconda basically creates a virtual environment in which you can specify the version of all packages including python itself

answered Mar 24 '20 at 15:39

Ritwiz Sinha

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Upgradation to Python 3.7

2 Answers2