0 instead of None

Author: vlimant

RucioClient.py

@@ -75,6 +75,8 @@ def getFileCountBlock(self, block):
         """
         try:
             numFiles = self.get_metadata(self.scope, block)['length']
+            if numFiles is None:
+                raise Exception("block length in rucio is None")
         except Exception as e:
             print(str(e))
             return 0