Do not check the type of sqlscript if it is None

coursera · Mar 10, 2015 · 89b4992 · 89b4992
1 parent ddaede7
commit 89b4992
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/dataduct/steps/sql_command.py b/dataduct/steps/sql_command.py
@@ -37,9 +37,9 @@ def __init__(self,
             **kwargs(optional): Keyword arguments directly passed to base class
         """
         if not exactly_one(command, script, sql_script):
-            raise ETLInputError('Both command or script found')
+            raise ETLInputError('Both command and script found')
 
-        if not isinstance(sql_script, SqlScript):
+        if sql_script is not None and not isinstance(sql_script, SqlScript):
             raise ETLInputError('sql_script should be of the type SqlScript')
 
         super(SqlCommandStep, self).__init__(**kwargs)