self.placement_groups = []
placement = attrs.get("placement", [])
- placement = placement if type(placement) is list else [placement]
+ placement = placement if isinstance(placement, list) else [placement]
for p in placement:
pg = PlacementGroup.get(p)
if not pg:
# support servergroup attr
self.server_group = None
sg = attrs.get("server_group")
- if (sg):
+ if sg:
server_group = ServerGroup.get(sg)
if not server_group:
raise ValueError("server '%s', server_group '%s' is invalid" %