Is that possible to run two versions of tensorflow by tox?

[Wapiti08]

Describe what improvement you want and how would this be used. Thanks!

[gaborbernat]

Can you please clarify what exactly you want to achieve?

[Wapiti08]

I am struggling to test two versions of tensorflows in a project. I tried to use virtualenv to activate and deactivate the environment to achieve that. I want to know whether tox can provide more convenient way to do that part.

[gaborbernat]

Yes it can.

[Wapiti08]

Okay. Thanks for your response. I have a problem as well to mention. Sorry I am newbie for this tool.
I have the following code:

[tox]
envlist = test_service
skipdist = True

[testenv]
install_command = pip install {opts} {packages}
basepython = 3.8.1.final.0

[testenv:test_service]
deps =
  -rrequirements.txt

setenv=
    PYTHONPATH=.

commands=
    sudo /bin/bash install_script.sh

When I test is with tox -e xx. I always got the error about missing project.toml. I am not sure how to fix that part. Can you please give me some advice? Thanks a lot.

[gaborbernat]

Generally whenever you're requesting help you need to provide the tox output, something like: tox --version and tox -vve xx. I have a few more questions:

• why define test_service but then invoke xx
• why set PYTHONPATH = .
• why do sudo /bin/bash install_script.sh
• why set basepython = 3.8.1.final.0?

[Wapiti08]

Here is the output, sorry about that:

tox -vve test_service
using tox.ini: xxxtox.ini (pid 44872)
using tox-3.24.1 from c:\users\ren\appdata\local\programs\python\python38\lib\site-packages\tox\__init__.py (pid 44872)
ERROR: No pyproject.toml or setup.py file found. The expected locations are:
  E:\xxx\pyproject.toml or E:\xxx\setup.py
You can
  1. Create one:
     https://tox.readthedocs.io/en/latest/example/package.html
  2. Configure tox to avoid running sdist:
     https://tox.readthedocs.io/en/latest/example/general.html
  3. Configure tox to use an isolated_build

The goal I want to achieve it to test the install process for requirements.txt. The version of python is the testing python version I used on my system. I think I need to read the instruction more about how to use that tool.