Raise NotImplementedError instead of NotImplemented

NotImplementedError is the name of the exception
(https://docs.python.org/2/library/exceptions.html).
NotImplemented is the name of a constant
(https://docs.python.org/2/library/constants.html).

>>> raise NotImplemented()
Traceback (most recent call last):
  File "<pyshell#31>", line 1, in <module>
    raise NotImplemented()
TypeError: 'NotImplementedType' object is not callable
>>> raise NotImplementedError()
Traceback (most recent call last):
  File "<pyshell#32>", line 1, in <module>
    raise NotImplementedError()
NotImplementedError
This patch fix it.

Change-Id: If4ea80c9e72478a9547c0c125d7cc1a5a1eccd1f
Closes-Bug: #1339855

solar/dblayer/locking.py

@@ -130,7 +130,7 @@ class _Lock(object):
 
     @classmethod
     def _acquire(cls, uid, identity):
-        raise NotImplemented(
+        raise NotImplementedError(
             'Different strategies for handling collisions')
 
     @classmethod

solar/orchestration/executors/base.py

@@ -34,18 +34,18 @@ class Executor(object):
         self.worker._executor = self
 
     def register_task(self, ctxt):
-        raise NotImplemented(
+        raise NotImplementedError(
             'Register task should be implemented'
             ' to support task interruption.')
 
     def register_timeout(self, timeout, callable_):
-        raise NotImplemented(
+        raise NotImplementedError(
             'Should be implemented to propagate errors by timeout')
 
     def kill(self, task_id, exc):
-        raise NotImplemented(
+        raise NotImplementedError(
             'Kill should be implemented'
             ' to support task interruption.')
 
     def run(self):
-        raise NotImplemented()
+        raise NotImplementedError()

solar/orchestration/workers/scheduler.py

@@ -137,7 +137,7 @@ class Scheduler(base.Worker):
 
     def _configure_timeout(self, ctxt, timeout):
         if not hasattr(self._executor, 'register_timeout'):
-            raise NotImplemented('Timeout is not supported')
+            raise NotImplementedError('Timeout is not supported')
         self._executor.register_timeout(
             timeout,
             partial(self.update_next, ctxt,

solar/orchestration/workers/subscription.py

@@ -33,7 +33,7 @@ class SubControl(object):
         self.add_subscriber(sub, 'before')
 
     def add_subscriber(self, sub, event):
-        raise NotImplemented()
+        raise NotImplementedError()
 
 
 class FuncSubControl(SubControl):

solar/orchestration/workers/tasks.py

@@ -1,4 +1,4 @@
-#    Copyright 2015 Mirantis, Inc.
+   #    Copyright 2015 Mirantis, Inc.
 #
 #    Licensed under the Apache License, Version 2.0 (the "License"); you may
 #    not use this file except in compliance with the License. You may obtain
@@ -44,6 +44,6 @@ class Tasks(base.Worker):
     def kill(self, ctxt, task_id):
         log.debug('Received kill request for task_id %s', task_id)
         if not hasattr(self._executor, 'kill'):
-            raise NotImplemented(
+            raise NotImplementedError(
                 'Current executor doesnt support interruping tasks')
         self._executor.kill(task_id, ExecutionTimeout)