Code review and done

Signed-off-by: SiqiLuo <1587295470@qq.com>

lib/sedna/algorithms/unseen_task_detection/unseen_sample_recognition/unseen_sample_detection.py

@@ -41,7 +41,7 @@ class UnseenSampleDetection(threading.Thread):
                 if status_dict["if_fall"] == "False":
                     continue
                 elif status_dict["if_fall"] == "True" and \
-                    self.current_status == "False":
+                        self.current_status == "False":
                     self.current_status = "True"
                     samples = os.listdir(self.local_image_url)
                     samples.sort(reverse=True)

lib/sedna/service/server/knowledgeBase/server.py

@@ -46,6 +46,10 @@ class TaskItem(BaseModel):  # pylint: disable=too-few-public-methods
 
 
 class KBServer(BaseServer):
+    """
+    As knowledge base stored in sqlite, this class realized creation,
+    update and query of sqlite.
+    """
     def __init__(self, host: str, http_port: int = 8080,
                  workers: int = 1, save_dir=""):
         servername = "knowledgebase"
@@ -167,7 +171,6 @@ class KBServer(BaseServer):
 
         with Session(bind=engine) as session:
             # TODO: to adapt unseen tasks
-            # for task_group in upload_info["task_groups"]:
             for task_group in task_groups:
                 grp, g_create = get_or_create(
                     session=session, model=TaskGrp, name=task_group.entry)