re-include test and data files in the installation following setuptools...

re-include test and data files in the installation following setuptools recommandation (c.f. https://setuptools.pypa.io/en/latest/userguide/datafiles.html)

MANIFEST.in

@@ -5,6 +5,6 @@ include version
 recursive-include spams_wrap *.h
 recursive-include spams_wrap *.cpp
 
-recursive-include tests *.py
-recursive-include data *.png
+recursive-include spams/tests *.py
+recursive-include spams/data *.png
 recursive-include doc *

README.md

@@ -50,8 +50,8 @@ Manipulated objects are imported from numpy and scipy. Matrices should be stored
 ### Testing the interface
 
 ```bash
-python tests/test_spams.py -h # to get help
-python tests/test_spams.py    # will run all the tests
+python spams/tests/test_spams.py -h # to get help
+python spams/tests/test_spams.py    # will run all the tests
 ```
 
 ---

setup.py

@@ -196,6 +196,9 @@ opts = dict(
     packages=find_packages(),
     cmdclass={'build_ext': CustomBuildExtCommand},
     ext_modules=get_extension(),
+    package_data={
+        "spams": ["data/*.png", "tests/*.py"]
+    },
     zip_safe=True
 )