title: Trouble with Nested Search Cursor. and Select by location
body: <p>I am brand new to running python in ArcMap. I have New York Metro Stop locations and the route polylines. I'm trying to automatically find what routes go through which stops (to be put into a corresponding field in the Metro Stops table), but my code just returns every route anyway. </p>
  
  <p>Code Below:</p>
  
  <pre><code>import arcpy
  
  #First check to see if the covered_routes field exists yet
  if len(arcpy.ListFields(Metro_Stops_Buffer,"covered_routes")) &gt; 0: 
      arcpy.DeleteField_management(Metro_Stops_Buffer, "covered_routes")
      arcpy.AddField_management(Metro_Stops_Buffer, "covered_routes", "string")
  else:
      arcpy.AddField_management(Metro_Stops_Buffer, "covered_routes", "string") 
  
  #Delete Extra Layers
  arcpy.Delete_management('Metro_Routes_lyr')
  arcpy.Delete_management('Metro_Stops_Buffer_lyr')
  
  #A Cursor that runs through each Stop.
  with arcpy.da.UpdateCursor(Metro_Stops_Buffer, "covered_routes") as cursor:
      for row in cursor:
          routes = []
  
          #Create the layers to work with from the GDB.
          arcpy.MakeFeatureLayer_management(Metro_Stops_Buffer, 'Metro_Stops_Buffer_lyr')
          arcpy.MakeFeatureLayer_management(Metro_Routes, 'Metro_Routes_lyr')
  
          #Select the routes that intersect the stop (row)
          arcpy.SelectLayerByLocation_management('Metro_Routes_lyr', "INTERSECT", 'Metro_Stops_Buffer_lyr')
  
          #Given the selected routes, create a new cursor that will return the route name (route_long) for each.
          with arcpy.da.SearchCursor('Metro_Routes_lyr', "route_long") as cursor2:
              for j in cursor2:
                  print(j)
                  routes.append(j)
                  print(routes)
  
                  #Insert the routes into the "covered_routes" field. 
                  row[0] = str(routes)
                  cursor.updateRow(row)
          del(routes)
          #Remove the unnecessary layers
          arcpy.Delete_management('Metro_Routes_lyr')
          arcpy.Delete_management('Metro_Stops_Buffer_lyr')
  </code></pre>
  
  <p>I think I've narrowed my error down to how it is doing the select by location, but I am not seeing whats wrong.</p>