diff --git a/README.adoc b/README.adoc
index afc5339..071748a 100644
--- a/README.adoc
+++ b/README.adoc
@@ -20903,6 +20903,15 @@ Examples:
 ** link:rootfs_overlay/lkmc/python/count.py[]: count once every second
 ** link:rootfs_overlay/lkmc/python/iter_method.py[]: how to implement `__iter__` on a class
 
+===== Python standard library
+
+====== Python unittest
+
+link:rootfs_overlay/lkmc/python/unittest_find/[] contains examples to test how tests are found by `unittest` within directories.  Related questions:
+
+* https://stackoverflow.com/questions/1732438/how-do-i-run-all-python-unit-tests-in-a-directory
+* https://stackoverflow.com/questions/46976256/recursive-unittest-discovery-with-python3-and-without-init-py-files
+
 ===== Build and install the interpreter
 
 Buildroot has a Python package that can be added to the guest image:
diff --git a/rootfs_overlay/lkmc/python/unittest_find/README.adoc b/rootfs_overlay/lkmc/python/unittest_find/README.adoc
new file mode 100644
index 0000000..3a30890
--- /dev/null
+++ b/rootfs_overlay/lkmc/python/unittest_find/README.adoc
@@ -0,0 +1 @@
+https://cirosantilli.com/linux-kernel-module-cheat#python-unittest
diff --git a/rootfs_overlay/lkmc/python/unittest_find/mydir/__init__.py b/rootfs_overlay/lkmc/python/unittest_find/mydir/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/rootfs_overlay/lkmc/python/unittest_find/mydir/myfile.py b/rootfs_overlay/lkmc/python/unittest_find/mydir/myfile.py
new file mode 100644
index 0000000..d84f015
--- /dev/null
+++ b/rootfs_overlay/lkmc/python/unittest_find/mydir/myfile.py
@@ -0,0 +1,8 @@
+import unittest
+
+class SomeTest(unittest.TestCase):
+    def test_atest(self):
+        """
+        this test passes
+        """
+        self.assertEqual(1, 2)
diff --git a/rootfs_overlay/lkmc/python/unittest_find/mydir/test/__init__.py b/rootfs_overlay/lkmc/python/unittest_find/mydir/test/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/rootfs_overlay/lkmc/python/unittest_find/mydir/test/test_myfile.py b/rootfs_overlay/lkmc/python/unittest_find/mydir/test/test_myfile.py
new file mode 100644
index 0000000..d84f015
--- /dev/null
+++ b/rootfs_overlay/lkmc/python/unittest_find/mydir/test/test_myfile.py
@@ -0,0 +1,8 @@
+import unittest
+
+class SomeTest(unittest.TestCase):
+    def test_atest(self):
+        """
+        this test passes
+        """
+        self.assertEqual(1, 2)
diff --git a/rootfs_overlay/lkmc/python/unittest_find/mydir_noinit/test_myfile.py b/rootfs_overlay/lkmc/python/unittest_find/mydir_noinit/test_myfile.py
new file mode 100644
index 0000000..d84f015
--- /dev/null
+++ b/rootfs_overlay/lkmc/python/unittest_find/mydir_noinit/test_myfile.py
@@ -0,0 +1,8 @@
+import unittest
+
+class SomeTest(unittest.TestCase):
+    def test_atest(self):
+        """
+        this test passes
+        """
+        self.assertEqual(1, 2)
diff --git a/rootfs_overlay/lkmc/python/unittest_find/myfile.py b/rootfs_overlay/lkmc/python/unittest_find/myfile.py
new file mode 100644
index 0000000..d84f015
--- /dev/null
+++ b/rootfs_overlay/lkmc/python/unittest_find/myfile.py
@@ -0,0 +1,8 @@
+import unittest
+
+class SomeTest(unittest.TestCase):
+    def test_atest(self):
+        """
+        this test passes
+        """
+        self.assertEqual(1, 2)
diff --git a/rootfs_overlay/lkmc/python/unittest_find/myfile2.py b/rootfs_overlay/lkmc/python/unittest_find/myfile2.py
new file mode 100644
index 0000000..d84f015
--- /dev/null
+++ b/rootfs_overlay/lkmc/python/unittest_find/myfile2.py
@@ -0,0 +1,8 @@
+import unittest
+
+class SomeTest(unittest.TestCase):
+    def test_atest(self):
+        """
+        this test passes
+        """
+        self.assertEqual(1, 2)
diff --git a/rootfs_overlay/lkmc/python/unittest_find/test/__init__.py b/rootfs_overlay/lkmc/python/unittest_find/test/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/rootfs_overlay/lkmc/python/unittest_find/test/myfile.py b/rootfs_overlay/lkmc/python/unittest_find/test/myfile.py
new file mode 100644
index 0000000..d84f015
--- /dev/null
+++ b/rootfs_overlay/lkmc/python/unittest_find/test/myfile.py
@@ -0,0 +1,8 @@
+import unittest
+
+class SomeTest(unittest.TestCase):
+    def test_atest(self):
+        """
+        this test passes
+        """
+        self.assertEqual(1, 2)
diff --git a/rootfs_overlay/lkmc/python/unittest_find/test/test_myfile.py b/rootfs_overlay/lkmc/python/unittest_find/test/test_myfile.py
new file mode 100644
index 0000000..d84f015
--- /dev/null
+++ b/rootfs_overlay/lkmc/python/unittest_find/test/test_myfile.py
@@ -0,0 +1,8 @@
+import unittest
+
+class SomeTest(unittest.TestCase):
+    def test_atest(self):
+        """
+        this test passes
+        """
+        self.assertEqual(1, 2)