Improves discovery of modules

setup.py

@@ -1,4 +1,4 @@
-from setuptools import setup, find_packages
+from setuptools import setup, find_namespace_packages
 
 setup(
     name='abgabesystem',
@@ -9,7 +9,8 @@ setup(
     url='https://ips1.ibr.cs.tu-bs.de/abgabesystem/abgabesystem',
     author='Tim Schubert',
     author_email='abgabesystem@timschubert.net',
-    packages=find_packages(),
+    package_dir={'': 'src'},
+    packages=find_namespace_packages(where='src'),
     install_requires=[
         'python-gitlab',
     ],