diff --git a/Code/Mantid/instrument/sans_generator.py b/Code/Mantid/instrument/sans_generator.py
index e7c72b440931..2464e97c9719 100644
--- a/Code/Mantid/instrument/sans_generator.py
+++ b/Code/Mantid/instrument/sans_generator.py
@@ -11,25 +11,25 @@ class Generator(object):
     pixel_size_x = 5.15/1000.0
     ## Pixel size in Y [mm]
     pixel_size_y = 5.15/1000.0
-    
+
     ## Instrument name
     name = "GPSANS"
-    
+
     ## Number of pixels
     n_pixels_x = 192
     n_pixels_y = 192
-    
+
     def __init__(self, name="GPSANS", pixel_size_x=5.15, pixel_size_y=5.15):
         self.name = name
         self.pixel_size_x = float(pixel_size_x)/1000.0
         self.pixel_size_y = float(pixel_size_y)/1000.0
-    
-    
+
+
     def __call__(self):
-        
+
         self._create_definition()
         self._create_parameters()
-        
+
     def _create_definition(self):
         output = open("%s_Definition.xml" % self.name.upper(), 'w')
         input = open(DEFINITION_TEMPLATE, 'r')
@@ -38,10 +38,10 @@ def _create_definition(self):
             l=l.replace("%last_modified%", time.strftime("%Y-%m-%d %H:%M:%S", time.localtime()))
             l=l.replace("%pixel_positions%", self._get_positions())
             l=l.replace("%pixels_ids%", self._get_ids())
-        
+
             half_x = self.pixel_size_x/2.0
             half_y = self.pixel_size_y/2.0
-            
+
             l=l.replace("%pixel_left_front_bottom_x%", "%6.6f" % -half_x)
             l=l.replace("%pixel_left_front_bottom_y%", "%6.6f" % -half_y)
             l=l.replace("%pixel_left_front_top_x%", "%6.6f" % -half_x)
@@ -54,7 +54,7 @@ def _create_definition(self):
 
         input.close()
         output.close()
-        
+
     def _get_positions(self):
         positions = ""
         for i_x in range(self.n_pixels_x):
@@ -62,9 +62,9 @@ def _get_positions(self):
                 x = self.pixel_size_x * (i_x-self.n_pixels_x/2.0+0.5)
                 y = self.pixel_size_y * (i_y-self.n_pixels_y/2.0+0.5)
                 positions += "      <location y=\"%6.6f\" x=\"%6.6f\" />\n" % (y, x)
-        
+
         return positions
-    
+
     def _get_ids(self):
         ids = ""
         for i in range(self.n_pixels_y):
@@ -72,7 +72,7 @@ def _get_ids(self):
             end = 1000000 + (self.n_pixels_x-1)*1000 + i
             ids += "    <id start=\"%d\" step=\"1000\" end=\"%d\" />\n" % (start, end)
         return ids
-    
+
     def _create_parameters(self):
         output = open("%s_Parameters.xml" % self.name.upper(), 'w')
         input = open(PARAMETERS_TEMPLATE, 'r')
@@ -87,7 +87,7 @@ def _create_parameters(self):
 
         input.close()
         output.close()
-         
-    
+
+
 if __name__ == '__main__':
     g = Generator(*sys.argv[1:])()
\ No newline at end of file