add InitError exception

edbob/initialization.py

@@ -35,6 +35,7 @@ from edbob.configuration import (
     default_system_paths,
     default_user_paths,
     )
+from edbob.exceptions import InitError
 
 
 __all__ = ['init']
@@ -90,6 +91,8 @@ def init(appname='edbob', *args, **kwargs):
         for name in modules.split(','):
             name = name.strip()
             module = __import__(name, globals(), locals(), fromlist=['init'])
+            if not hasattr(module, 'init'):
+                raise InitError(module)
             getattr(module, 'init')(config)
             # config.inited.append(name)