update py/DynamoDB-UpdateItem.py.

py/DynamoDB-UpdateItem.py

@@ -18,7 +18,7 @@ def increase_rating(keya,dynamodb=None):
 
 # use Client        
 def updata_ddb(name,msg,alias):
-    client = boto3.client('dynamodb')
+    table = boto3.client('dynamodb')
     table.update_item(TableName='hehe',
         Key={'name': {'S':name}},
         UpdateExpression='SET name = :name, alias = :alias',