diff --git a/multiple_python_version/.gitignore b/multiple_python_version/.gitignore
new file mode 100644
index 0000000..831fce0
--- /dev/null
+++ b/multiple_python_version/.gitignore
@@ -0,0 +1 @@
+.venv*
diff --git a/multiple_python_version/Makefile b/multiple_python_version/Makefile
new file mode 100644
index 0000000..507231e
--- /dev/null
+++ b/multiple_python_version/Makefile
@@ -0,0 +1,45 @@
+
+
+system_minor := $(shell python3 -c "import sys;print(sys.version_info.minor)")
+minor?=$(system_minor)
+
+PYTHON=python3.$(minor)
+venv=.venv3.$(minor)
+python=$(venv)/bin/python
+pytest=$(python) -m pytest
+
+py_install=$(python) -m pip
+
+
+.venv3.$(minor):
+	$(PYTHON) -m venv $(venv)
+
+
+
+test: venv
+	$(pytest) --version || make install
+
+	$(pytest) -sv --durations=5 --ignore-glob=sample_* .
+
+qtest: venv
+	$(pytest) --lf --ff -v --durations=5 .
+
+
+install_dependencies:
+	$(py_install) install -U pip wheel
+	$(py_install) install pytest python-dotenv pytest-icdiff
+
+
+venv:
+	make .venv3.$(minor)
+
+clean:
+	rm -fr $(venv)
+
+install: venv install_dependencies
+build: install test
+scratch: clean install test
+
+# [cgoutte@e490 tddevops]$ python3 -m venv .venv/3.9/
+# [cgoutte@e490 tddevops]$ source .venv/3.9/bin/activate
+
diff --git a/multiple_python_version/module.py b/multiple_python_version/module.py
new file mode 100644
index 0000000..e69de29
diff --git a/multiple_python_version/test_module.py b/multiple_python_version/test_module.py
new file mode 100644
index 0000000..66954a9
--- /dev/null
+++ b/multiple_python_version/test_module.py
@@ -0,0 +1,14 @@
+def test_import():
+    import module
+
+
+def test_true():
+    import module
+
+    assert module.true()
+
+
+def test_fasle():
+    import module
+
+    assert not module.false()