Use find_packages to find subpackages.

Author: tannewt

setup.py

@@ -55,9 +55,5 @@
     # What does your project relate to?
     keywords='adafruit blinka circuitpython micropython ble bluetooth',
 
-    # You can just specify the packages manually here if your project is
-    # simple. Or you can use find_packages().
-    # TODO: IF LIBRARY FILES ARE A PACKAGE FOLDER,
-    #       CHANGE `py_modules=['...']` TO `packages=['...']`
-    packages=['adafruit_ble'],
+    packages=find_packages(include=["adafruit_ble.*"]),
 )