doctests

mapytex/calculus/API/expression.py

@@ -43,8 +43,8 @@ class Expression(object):
     def from_str(cls,  string):
         """ Initiate the expression from a string
 
-        :param string: TODO
-        :returns: TODO
+        :param string: String to parse to generate the Expression
+        :returns: the expression
 
         """
         t = Tree.from_str(string)