--- ./setup.py.orig
+++ ./setup.py
@@ -1,3 +1,3 @@
-from setuptools import setup
+from setuptools import setup, find_packages
 
-setup()
+setup(packages=find_packages("src", exclude=["*tests"]))
--- ./MANIFEST.in.orig
+++ ./MANIFEST.in
@@ -3,3 +3,4 @@
 
 recursive-include src *.png
 
+global-exclude tests/*
