passes checks in python3

rowers/courseutils.py

@@ -5,10 +5,10 @@ def coordinate_in_path(latitude,longitude, p):
 
 class InvalidTrajectoryError(Exception):
     def __init__(self,value):
-	self.value=value
+        self.value=value
 
     def __str__(self):
-	return repr(self.value)
+        return repr(self.value)
 
 def time_in_path(df,p,maxmin='max',getall=False):