fix 2

rowers/utils.py

@@ -772,6 +772,9 @@ def step_to_time_dist(step, avgspeed=3.2, ftp=200, ftspm=25, ftv=3.7, powerzones
         distance = avgspeed*seconds
         rscore = 60.*seconds/3600.
 
+        if targettype is None:
+            return seconds, distance, rscore
+
         if targettype.lower() == 'speed':  # pragma: no cover
             value = step.get('targetValue', 0)
             valuelow = step.get('targetValueLow', 0)