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Hoshino

How to update python 3.5 => 3.6

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Python 3.5 became obslute.

Is there any useful information to update python 3.6 or later.

1. update Debian stretch to buster?

or 2. add repository to apt?

or 3. compile python 3.6?

 

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I referred to  https://www.rosehosting.com/blog/how-to-install-python-3-6-4-on-debian-9/

Using apt: 

E: The value 'stable' is invalid for APT::Default-Release as such a release is not available in the sources

> sudo apt -t testing install python3.6

Reading package lists... Done

Building dependency tree

Reading state information... Done

Note, selecting 'python3.6-2to3' for regex 'python3.6'

Note, selecting 'libpython3.6-stdlib' for regex 'python3.6'

0 upgraded, 0 newly installed, o to remove and 943 not upgraded.

How could I do next?

Compiling Python3.6.4:

> sudo apt install llvm

Reading package lists... Done

Building dependency tree

Reading state information... Done

Some packages could not be installed. This may mean that you have 

requested an impossible situation or if you are using the unstable

distribution that some required packages have not yet been created

or been moved out of Incoming.

The following information may help to resolve the situation:

The following packages have unmet dependencies:

 llvm : Depends: llvm-runtime (=1:3.8-36) but it is not going to be installed

           Depends: llvm-3.8 (>= 3.8 ~) but it is not going to be installed

E: Unable to correct problems, you have held broken packages.

How could I do next?

 

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Thank you for your comment.

Using apt:

The version stretch is former version. After I replaced the word "stable" to "stretch", apt was worked well. 

But python3.9 was installed which is not for machine learning.

So, I flushing image again.

Compiling Python 3.6 or later:

In the rknn-toolkit-1.3.2 python 3.7 might be supported. 

I will continue compiling python.

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