PEP8 cleanup in nova/*, except for tests. There should be no functional changes here, just style changes to get violations down.

nova/auth/dbdriver.py

@@ -47,19 +47,23 @@ class DbDriver(object):
 
     def get_user(self, uid):
         """Retrieve user by id"""
-        return self._db_user_to_auth_user(db.user_get(context.get_admin_context(), uid))
+        user = db.user_get(context.get_admin_context(), uid)
+        return self._db_user_to_auth_user(user)
 
     def get_user_from_access_key(self, access):
         """Retrieve user by access key"""
-        return self._db_user_to_auth_user(db.user_get_by_access_key(context.get_admin_context(), access))
+        user = db.user_get_by_access_key(context.get_admin_context(), access)
+        return self._db_user_to_auth_user(user)
 
     def get_project(self, pid):
         """Retrieve project by id"""
-        return self._db_project_to_auth_projectuser(db.project_get(context.get_admin_context(), pid))
+        project = db.project_get(context.get_admin_context(), pid)
+        return self._db_project_to_auth_projectuser(project)
 
     def get_users(self):
         """Retrieve list of users"""
-        return [self._db_user_to_auth_user(user) for user in db.user_get_all(context.get_admin_context())]
+        return [self._db_user_to_auth_user(user)
+                for user in db.user_get_all(context.get_admin_context())]
 
     def get_projects(self, uid=None):
         """Retrieve list of projects"""
@@ -71,11 +75,10 @@ class DbDriver(object):
 
     def create_user(self, name, access_key, secret_key, is_admin):
         """Create a user"""
-        values = { 'id'         : name,
-                   'access_key' : access_key,
-                   'secret_key' : secret_key,
-                   'is_admin'   : is_admin
-                 }
+        values = {'id': name,
+                  'access_key': access_key,
+                  'secret_key': secret_key,
+                  'is_admin': is_admin}
         try:
             user_ref = db.user_create(context.get_admin_context(), values)
             return self._db_user_to_auth_user(user_ref)
@@ -83,18 +86,19 @@ class DbDriver(object):
             raise exception.Duplicate('User %s already exists' % name)
 
     def _db_user_to_auth_user(self, user_ref):
-        return { 'id'     : user_ref['id'],
-                 'name'   : user_ref['id'],
-                 'access' : user_ref['access_key'],
-                 'secret' : user_ref['secret_key'],
-                 'admin'  : user_ref['is_admin'] }
+        return {'id': user_ref['id'],
+                'name': user_ref['id'],
+                'access': user_ref['access_key'],
+                'secret': user_ref['secret_key'],
+                'admin': user_ref['is_admin']}
 
     def _db_project_to_auth_projectuser(self, project_ref):
-        return { 'id'                 : project_ref['id'],
-                 'name'               : project_ref['name'],
-                 'project_manager_id' : project_ref['project_manager'],
-                 'description'        : project_ref['description'],
-                 'member_ids'         : [member['id'] for member in project_ref['members']] }
+        member_ids = [member['id'] for member in project_ref['members']]
+        return {'id': project_ref['id'],
+                'name': project_ref['name'],
+                'project_manager_id': project_ref['project_manager'],
+                'description': project_ref['description'],
+                'member_ids': member_ids}
 
     def create_project(self, name, manager_uid,
                        description=None, member_uids=None):
@@ -121,10 +125,10 @@ class DbDriver(object):
                                              % member_uid)
                 members.add(member)
 
-        values = { 'id'         : name,
-                   'name'       : name,
-                   'project_manager' : manager['id'],
-                   'description': description }
+        values = {'id': name,
+                  'name': name,
+                  'project_manager': manager['id'],
+                  'description': description}
 
         try:
             project = db.project_create(context.get_admin_context(), values)
@@ -244,4 +248,3 @@ class DbDriver(object):
         if not project:
             raise exception.NotFound('Project "%s" not found' % project_id)
         return user, project
-

nova/auth/fakeldap.py

@@ -35,6 +35,7 @@ flags.DEFINE_integer('redis_port', 6379,
                     'Port that redis is running on.')
 flags.DEFINE_integer('redis_db', 0, 'Multiple DB keeps tests away')
 
+
 class Redis(object):
     def __init__(self):
         if hasattr(self.__class__, '_instance'):
@@ -51,19 +52,19 @@ class Redis(object):
 
 
 SCOPE_BASE = 0
-SCOPE_ONELEVEL = 1 # not implemented
+SCOPE_ONELEVEL = 1  # Not implemented
 SCOPE_SUBTREE = 2
 MOD_ADD = 0
 MOD_DELETE = 1
 MOD_REPLACE = 2
 
 
-class NO_SUCH_OBJECT(Exception): # pylint: disable-msg=C0103
+class NO_SUCH_OBJECT(Exception):  # pylint: disable-msg=C0103
     """Duplicate exception class from real LDAP module."""
     pass
 
 
-class OBJECT_CLASS_VIOLATION(Exception): # pylint: disable-msg=C0103
+class OBJECT_CLASS_VIOLATION(Exception):  # pylint: disable-msg=C0103
     """Duplicate exception class from real LDAP module."""
     pass
 
@@ -251,8 +252,6 @@ class FakeLDAP(object):
         return objects
 
     @property
-    def __redis_prefix(self): # pylint: disable-msg=R0201
+    def __redis_prefix(self):  # pylint: disable-msg=R0201
         """Get the prefix to use for all redis keys."""
         return 'ldap:'
-
-

nova/auth/ldapdriver.py

@@ -294,24 +294,26 @@ class LdapDriver(object):
 
     def __find_dns(self, dn, query=None, scope=None):
         """Find dns by query"""
-        if scope is None: # one of the flags is 0!!
+        if scope is None:
+            # One of the flags is 0!
             scope = self.ldap.SCOPE_SUBTREE
         try:
             res = self.conn.search_s(dn, scope, query)
         except self.ldap.NO_SUCH_OBJECT:
             return []
-        # just return the DNs
+        # Just return the DNs
         return [dn for dn, _attributes in res]
 
     def __find_objects(self, dn, query=None, scope=None):
         """Find objects by query"""
-        if scope is None: # one of the flags is 0!!
+        if scope is None:
+            # One of the flags is 0!
             scope = self.ldap.SCOPE_SUBTREE
         try:
             res = self.conn.search_s(dn, scope, query)
         except self.ldap.NO_SUCH_OBJECT:
             return []
-        # just return the attributes
+        # Just return the attributes
         return [attributes for dn, attributes in res]
 
     def __find_role_dns(self, tree):
@@ -480,6 +482,6 @@ class LdapDriver(object):
 class FakeLdapDriver(LdapDriver):
     """Fake Ldap Auth driver"""
 
-    def __init__(self): # pylint: disable-msg=W0231
+    def __init__(self):  # pylint: disable-msg=W0231
         __import__('nova.auth.fakeldap')
         self.ldap = sys.modules['nova.auth.fakeldap']

nova/auth/manager.py

@@ -23,7 +23,7 @@ Nova authentication management
 import logging
 import os
 import shutil
-import string # pylint: disable-msg=W0402
+import string  # pylint: disable-msg=W0402
 import tempfile
 import uuid
 import zipfile

nova/scheduler/simple.py

@@ -36,6 +36,7 @@ flags.DEFINE_integer("max_gigabytes", 10000,
 flags.DEFINE_integer("max_networks", 1000,
                      "maximum number of networks to allow per host")
 
+
 class SimpleScheduler(chance.ChanceScheduler):
     """Implements Naive Scheduler that tries to find least loaded host."""