Run individual tests when tests are not installed as part of package

[redbaron4]

I tend to follow the package structure as detailed here . In short, the tests are outside the scope of package

Foo
 |
  - pyproject.toml
  - unittest.cfg
  - tox.ini
  - tests
     |
      - __init__.py
      - test_one.py
      - others
          |
           - __init__.py
           - test_two.py
  - src
     | 
      - mypkg
           |
             - __init__.py
             - one.py
             - two.py

The tox.ini file looks like

[tox]
minversion = 3.24
envlist = nose2, flake8
isolated_build = True

[testenv:nose2]
description = Run automated code tests
setenv =
    TOXINIDIR = {toxinidir}
passenv =
    HOME
    SETUPTOOLS_*
commands =
    nose2 -c {toxinidir}/unittest.cfg --with-coverage --coverage mypkg --coverage-config {toxinidir}/.coveragerc -s {toxinidir}/tests {posargs}
deps = 
    nose2[coverage_plugin]
    beautifulsoup4
    webtest
    mysqlclient

[testenv:flake8]
changedir = {toxinidir}
deps = 
    flake8
    flake8-print
commands = 
    flake8 --config={toxinidir}/tox.ini {posargs}

When I do tox -e nose2, I can run all the tests

How can I tell nose2 to run only few tests (e.g. only others.test_two).

I tried

tox -e nose2 .tests.test_one

But it shows an error

File ".tox/nose2/lib/python3.9/site-packages/nose2/util.py", line 165, in try_import_module_from_name
    module = __import__(".".join(splitted_name))
ValueError: Empty module name