using legacy ini

pyproject.toml

@@ -190,6 +190,41 @@ known-first-party = ["tephi"]
     "ERA001", # Has commented out code
 ]
 
+[tool.tox]
+legacy_tox_ini = """
+    [tox]
+    requires =
+        tox-conda
+    minversion = 3.15
+    base_python = py311
+    envlist=py{38,39,310,311}
+
+    [testenv]
+    description = invoke pytest to run automated tests
+    deps =
+        pytest
+        pytest-cov
+        filelock
+        requests
+        imagehash
+    conda_env = requirements/dev.yml
+    commands =
+        pytest --cov tephi --cov-report term-missing {posargs}
+
+    [testenv:{docs,doctests}]
+    description =
+        invoke sphinx-build to build the docs/run the doctests
+    setenv =
+        DOCSDIR = {toxinidir}/docs/source
+        BUILDDIR = {toxinidir}/docs/_build
+    conda_env = requirements/rtd.yml
+    commands =
+        sphinx-apidoc -o "{env:DOCSDIR}/api" tephi tephi/tests
+        sphinx-build  -W --keep-going -b html -d "{env:BUILDDIR}/doctrees" "{env:DOCSDIR}" "{env:BUILDDIR}/html" {posargs}
+        # when running the doctests, also check that any snippets in the
+        # docs are representative of the module output
+        doctests: sphinx-build -b doctest -d "{env:BUILDDIR}/doctrees" "{env:DOCSDIR}" "{env:BUILDDIR}/doctest" {posargs}
+    """
 
 [tool.ruff.lint.pydocstyle]
 convention = "numpy"