How to build snap with python 3.6

mcaetano · February 12, 2019, 4:51pm

This is something that should be straightforward but I haven’t found any documentation in how to do so. I gladly appreciate your help.

I need to build an app that requires python 3.6. The snapcraft builds using python 3.5.

I have seen https://github.com/jhenstridge/python-snap-pkg but how it possible to use it inside the snapcraft.yml ?
Building the snap using base: core18 still says that I’m using python 3.5 afterwards when building automatically with build.snapcraft.io.

Any idea how I can build the snap with python 3.6 or python 3.7 ?

sergiusens · February 12, 2019, 6:51pm

Here are the steps:

sudo apt remove --purge snapcraft
sudo snap install snapcraft --classic
cd <project>
snapcraft init
edit snap/snapcraft.yaml (leave the base declaration as is, i.e.; core18)
run snapcraft

Hope this helps.

mcaetano · February 12, 2019, 6:58pm

Im using build.snapcraft.io so i’m not sure how your suggestion helps.

You can see my snapcraft.yaml file here.

github.com

yorokobicom/agent/blob/master/snap/snapcraft.yaml

name: yorokobi
base: core18
version: git
summary: Automatic PostgreSQL backups for web apps.
description: |
  The agent is a system service that performs backups, encrypt and
  transfer them to Yorokobi backup servers.

grade: devel # must be 'stable' to release into candidate/stable channels
confinement: strict

apps:
  yorokobi:
    command: yorokobi
    plugs: 
      - network

  daemon:
    command: yorokobid
    daemon: simple

This file has been truncated. show original

It says base: core18 but still is using python 3.5 instead of python 3.6.

You can see the log of the last build here.

Any idea?

sergiusens · February 14, 2019, 8:27pm

build.snapcraft.io does not have support for core18 yet

dhoomakethu · February 28, 2019, 3:55am

I tried this, But the snap is still packaged with python3.5 and the all the modules go and sit in python3.5/site-packages folder. I am building on the official docker image for snapcraft.

Lin-Buo-Ren · February 28, 2019, 8:48am

NOTE: This is no longer valid: Core18 base in build.snapcraft.io