错误：py35：InterpreterNotFound：即使安装了python3.5，python3.5

Question

I'm running my builds on my CI (bamboo) via tox on docker

my tox.ini look like this

[tox]
envlist = py27,py35
[testenv]
deps=-rrequirements.txt
commands=pytest

i'm running the tests like so

tox --recreate -vv -i $myindexserver

Testing the setup locally works (inside docker)

py27: commands succeeded
py35: commands succeeded
congratulations :)

But while running the same thing on the CI instance failes with

___________________________________ summary_________________________________

py27: commands succeeded
ERROR: py35: InterpreterNotFound: python3.5

inside the docker, running which python3 and which python3.5 succeeds

Has anyone faced similar issue?

Answer 1

Turns out that the docker container versions used by my local and the one used by the CI were different.

I'm keeping the answer here in the hopes that someone else finds this useful and possibly save the many hours of debugging that I had to waste.

do a docker images to find the tag that you're using locally, and check it against the version running inside your CI.