more pep fixups.

Signed-off-by: Angus Salkeld <asalkeld@redhat.com>

heat/db/api.py

@@ -43,6 +43,8 @@ db_opts = [
 #conf.db_backend = 'heat.db.sqlalchemy.api'
 IMPL = heat.utils.LazyPluggable('db_backend',
                            sqlalchemy='heat.db.sqlalchemy.api')
+
+
 def configure(conf):
     global SQL_CONNECTION
     global SQL_IDLE_TIMEOUT
@@ -50,7 +52,6 @@ def configure(conf):
     SQL_IDLE_TIMEOUT = conf.sql_idle_timeout
 
 
-
 def raw_template_get(context, template_id):
     return IMPL.raw_template_get(context, template_id)
 

heat/db/sqlalchemy/migration.py

@@ -23,6 +23,7 @@ from migrate.versioning import util as migrate_util
 
 _REPOSITORY = None
 
+
 @migrate_util.decorator
 def patched_with_engine(f, *a, **kw):
     url = a[0]
@@ -55,7 +56,7 @@ except ImportError:
         from migrate import exceptions as versioning_exceptions
     except ImportError:
         sys.exit(_("python-migrate is not installed. Exiting."))
-    
+
 #_REPOSITORY = None
 
 
@@ -86,7 +87,7 @@ def db_version():
         engine = get_engine()
         meta.reflect(bind=engine)
         try:
-            for table in ('stack', 'resource', 'event', 
+            for table in ('stack', 'resource', 'event',
                             'parsed_template', 'raw_template'):
                 assert table in meta.tables
             return db_version_control(1)

heat/db/sqlalchemy/session.py

@@ -26,6 +26,7 @@ _MAKER = None
 class Error(Exception):
     pass
 
+
 class DBError(Error):
     """Wraps an implementation specific exception."""
     def __init__(self, inner_exception=None):
@@ -45,6 +46,7 @@ def _wrap_db_error(f):
     _wrap.func_name = f.func_name
     return _wrap
 
+
 def get_session(autocommit=True, expire_on_commit=False):
     """Return a SQLAlchemy session."""
     global _ENGINE, _MAKER