bug fix: lock, parallel processing bigquery

setup.py

@@ -8,7 +8,7 @@ def read(fname):
     return open(os.path.join(os.path.dirname(__file__), fname)).read() 
 args    = {
     "name":"data-transport",
-    "version":"1.3.8.2",
+    "version":"1.3.8.3",
     "author":"The Phi Technology LLC","author_email":"info@the-phi.com",
     "license":"MIT",
     "packages":["transport"]}

transport/sql.py

@@ -227,7 +227,7 @@ class BQReader(BigQuery,Reader) :
             SQL = SQL.replace(':dataset',self.dataset).replace(':DATASET',self.dataset)
         return pd.read_gbq(SQL,credentials=self.credentials,dialect='standard') if SQL else None
 class BQWriter(BigQuery,Writer):
-    Lock = Lock()
+    lock = Lock()
     def __init__(self,**_args):
         super().__init__(**_args)