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I am preparing a docker image for Ubuntu 20.04 and due to TensorFlow 2.0 requirement, I need Python 3.7. TensorFlow runs on Python 3.5 to 3.7. Running apt install python3 installs Python 3.8 by default and that breaks my TensorFlow installation.

Is there any way I can get an apt package for Python 3.7 for Ubuntu 20.04? Since it is going to be inside docker image, I don't want to get into the business of downloading Python 3.7 source code and compiling. Putting those commands in Dockerfile will be overwhelming for me. Is there any simpler way of getting Python 3.7 for Ubuntu 20.04?

Running

sudo apt-cache madison python3

returns

python3 | 3.8.2-0ubuntu2 | http://in.archive.ubuntu.com/ubuntu focal/main amd64 Packages
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  • hye, if you look into dockerhub , you can find the official images of tensorflow, you can find tensorflow in any version running on almost any python version too! Commented Jan 29, 2022 at 20:47

2 Answers 2

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Do you need Ubuntu 20.04? Ubuntu 18.04 comes with Python 3.6, and 3.7 available.

If you do, the deadsnakes PPA has Python 3.5-3.7 for Ubuntu 20.04 (Focal). To add it and install:

sudo add-apt-repository ppa:deadsnakes/ppa sudo apt-get install python3.7

P.s. I'm not a dev and have no experience with Tensorflow so take this with a grain of salt.

(Sidenote: add-apt-repository runs apt-get update automatically, but that's not documented in man add-apt-repository, only add-apt-repository --help. This was fixed in a later release.)

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5 Comments

I am not sure if I will be adding PPA. But thanks though. It looks like temporary fix. I was expecting more of a permanent fix.
@Kunal I don't think Python 3.7 or below will ever be officially packaged for Ubuntu 20.04. Seems like the Ubuntu devs never package older minor versions.
so in that case, I will have to wait till tensorflow certifies python3.8 to be used on 20.04. Till then, it is TF 2.x on 18.04
@Apurva What error are you getting? I just updated from it and checked the website and it's fine.
@Apurva Sounds like an organizational setting is blocking it. Check out this question on Ask Ubuntu: Cannot add PPA - "user or team does not exist". BTW, make sure to always provide verbatim error messages; this one seems to be "... user or team does not exist".
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Tensorflow 2.2 now supports python 3.8 so problem is solved now.

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3 Comments

But not TF.lite yet :-(
But not for Raspberry Pi (aarch64) in case anyone is wondering...
Just needed an aditionnal year and TFlite 2.5 to solve it...

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