refs #13874. Algorithm not registered.

Framework/PythonInterface/plugins/algorithms/WorkflowAlgorithms/DetectorFloodWeighting.py

@@ -2,8 +2,7 @@ from mantid.api import DataProcessorAlgorithm, AlgorithmFactory, MatrixWorkspace
 
 from mantid.kernel import Direction, FloatArrayProperty, FloatArrayBoundedValidator
 
-import numpy as np 
-
+import numpy as np
 
 class DetectorFloodWeighting(DataProcessorAlgorithm):
 
@@ -110,4 +109,5 @@ class DetectorFloodWeighting(DataProcessorAlgorithm):
         self.setProperty('OutputWorkspace', normalized)
 
 
-# Register alg
\ No newline at end of file
+# Register alg
+AlgorithmFactory.subscribe(DetectorFloodWeighting)