Allow shared namespaces across modules

Author: robbywalker

src/fastpb/generator.py

@@ -175,7 +175,10 @@ def main():
       if package not in parents:
         initPy = response.file.add()
         initPy.name = os.path.join('src', filePath, '__init__.py')
-        initPy.content = ''
+        initPy.content = """
+import pkg_resources
+pkg_resources.declare_namespace('%s')
+""" % package
         parents.add(package)
 
     # Write the C file.