diff --git a/libs/README.md b/libs/README.md
new file mode 100644
index 0000000..1bf8753
--- /dev/null
+++ b/libs/README.md
@@ -0,0 +1,9 @@
+# Vendored MicroPyton libraries
+
+This directory contains some libraries that are required by examples and unit
+tests.
+
+All libraries except `utemplate` were copied from the
+[micropython-lib](https://github.com/micropython/micropython-lib) project. See
+the README file in the `common/utemplate` subdirectory for details about this
+library.
diff --git a/src/utemplate/README.md b/libs/common/utemplate/README.md
similarity index 100%
rename from src/utemplate/README.md
rename to libs/common/utemplate/README.md
diff --git a/src/utemplate/compiled.py b/libs/common/utemplate/compiled.py
similarity index 100%
rename from src/utemplate/compiled.py
rename to libs/common/utemplate/compiled.py
diff --git a/src/utemplate/recompile.py b/libs/common/utemplate/recompile.py
similarity index 100%
rename from src/utemplate/recompile.py
rename to libs/common/utemplate/recompile.py
diff --git a/src/utemplate/source.py b/libs/common/utemplate/source.py
similarity index 100%
rename from src/utemplate/source.py
rename to libs/common/utemplate/source.py
diff --git a/tests/libs/datetime.py b/libs/micropython/datetime.py
similarity index 100%
rename from tests/libs/datetime.py
rename to libs/micropython/datetime.py
diff --git a/tests/libs/ffilib.py b/libs/micropython/ffilib.py
similarity index 100%
rename from tests/libs/ffilib.py
rename to libs/micropython/ffilib.py
diff --git a/tests/libs/time.py b/libs/micropython/time.py
similarity index 100%
rename from tests/libs/time.py
rename to libs/micropython/time.py
diff --git a/tests/libs/uasyncio/__init__.py b/libs/micropython/uasyncio/__init__.py
similarity index 100%
rename from tests/libs/uasyncio/__init__.py
rename to libs/micropython/uasyncio/__init__.py
diff --git a/tests/libs/uasyncio/core.py b/libs/micropython/uasyncio/core.py
similarity index 100%
rename from tests/libs/uasyncio/core.py
rename to libs/micropython/uasyncio/core.py
diff --git a/tests/libs/uasyncio/event.py b/libs/micropython/uasyncio/event.py
similarity index 100%
rename from tests/libs/uasyncio/event.py
rename to libs/micropython/uasyncio/event.py
diff --git a/tests/libs/uasyncio/funcs.py b/libs/micropython/uasyncio/funcs.py
similarity index 100%
rename from tests/libs/uasyncio/funcs.py
rename to libs/micropython/uasyncio/funcs.py
diff --git a/tests/libs/uasyncio/lock.py b/libs/micropython/uasyncio/lock.py
similarity index 100%
rename from tests/libs/uasyncio/lock.py
rename to libs/micropython/uasyncio/lock.py
diff --git a/tests/libs/uasyncio/manifest.py b/libs/micropython/uasyncio/manifest.py
similarity index 100%
rename from tests/libs/uasyncio/manifest.py
rename to libs/micropython/uasyncio/manifest.py
diff --git a/tests/libs/uasyncio/stream.py b/libs/micropython/uasyncio/stream.py
similarity index 100%
rename from tests/libs/uasyncio/stream.py
rename to libs/micropython/uasyncio/stream.py
diff --git a/tests/libs/uasyncio/task.py b/libs/micropython/uasyncio/task.py
similarity index 100%
rename from tests/libs/uasyncio/task.py
rename to libs/micropython/uasyncio/task.py
diff --git a/tests/libs/unittest.py b/libs/micropython/unittest.py
similarity index 100%
rename from tests/libs/unittest.py
rename to libs/micropython/unittest.py
diff --git a/run_tests.py b/run_tests.py
index 3d6a1d3..2fe54a4 100644
--- a/run_tests.py
+++ b/run_tests.py
@@ -1,7 +1,8 @@
 import sys
 
 sys.path.insert(0, 'src')
-sys.path.insert(2, 'tests/libs')
+sys.path.insert(2, 'libs/common')
+sys.path.insert(3, 'libs/micropython')
 
 import unittest
 
diff --git a/tox.ini b/tox.ini
index 9f05951..06ad66e 100644
--- a/tox.ini
+++ b/tox.ini
@@ -19,6 +19,8 @@ commands=
 deps=
     pytest
     pytest-cov
+setenv=
+    PYTHONPATH=libs/common
 
 [testenv:flake8]
 deps=