Improve mapping recognition

[linpy.git] / pypol / coordinates.py

diff --git a/pypol/coordinates.py b/pypol/coordinates.py
index 44b9e9d..78e8d4a 100644 (file)
--- a/pypol/coordinates.py
+++ b/pypol/coordinates.py
@@ -3,7 +3,7 @@ import numbers
 import operator
 
 from abc import ABC, abstractmethod
 import operator
 
 from abc import ABC, abstractmethod

-from collections import OrderedDict
+from collections import OrderedDict, Mapping

 
 from .linexprs import Symbol
 
 
 from .linexprs import Symbol
 


@@ -75,7 +75,7 @@ class Point(Coordinates):
     """
 
     def __new__(cls, coordinates=None):
     """
 
     def __new__(cls, coordinates=None):

-        if isinstance(coordinates, dict):
+        if isinstance(coordinates, Mapping):

             coordinates = coordinates.items()
         self = object().__new__(cls)
         self._coordinates = OrderedDict()
             coordinates = coordinates.items()
         self = object().__new__(cls)
         self._coordinates = OrderedDict()


@@ -227,8 +227,3 @@ class Vector(Coordinates):
             coordinates = self._map2(other, operator.sub)
             return other.__class__(coordinates)
         return NotImplemented
             coordinates = self._map2(other, operator.sub)
             return other.__class__(coordinates)
         return NotImplemented

-
-    def __repr__(self):
-        string = ', '.join(['{!r}: {!r}'.format(symbol, coordinate)
-            for symbol, coordinate in self.coordinates()])
-        return '{}({{{}}})'.format(self.__class__.__name__, string)