no copy() for spaces

nifty/spaces/gl_space/gl_space.py

@@ -109,9 +109,6 @@ class GLSpace(Space):
     def total_volume(self):
         return 4 * np.pi
 
-    def copy(self):
-        return self.__class__(nlat=self.nlat, nlon=self.nlon)
-
     def scalar_weight(self):
         return None
 

nifty/spaces/hp_space/hp_space.py

@@ -104,9 +104,6 @@ class HPSpace(Space):
     def total_volume(self):
         return 4 * np.pi
 
-    def copy(self):
-        return self.__class__(nside=self.nside)
-
     def scalar_weight(self):
         return np.pi / (3*self._nside*self._nside)
 

nifty/spaces/lm_space/lm_space.py

@@ -114,9 +114,6 @@ class LMSpace(Space):
         # the individual pixels have a fixed volume of 1.
         return np.float64(self.dim)
 
-    def copy(self):
-        return self.__class__(lmax=self.lmax)
-
     def scalar_weight(self):
         return 1.
 

nifty/spaces/power_space/power_space.py

@@ -204,10 +204,6 @@ class PowerSpace(Space):
         # every power-pixel has a volume of 1
         return float(reduce(lambda x, y: x*y, self.pindex.shape))
 
-    def copy(self):
-        return self.__class__(harmonic_partner=self.harmonic_partner,
-                              binbounds=self._binbounds)
-
     def scalar_weight(self):
         return None
 

nifty/spaces/rg_space/rg_space.py

@@ -110,11 +110,6 @@ class RGSpace(Space):
     def total_volume(self):
         return self.dim * self._wgt
 
-    def copy(self):
-        return self.__class__(shape=self.shape,
-                              distances=self.distances,
-                              harmonic=self.harmonic)
-
     def scalar_weight(self):
         return self._wgt
 

nifty/spaces/space/space.py

@@ -77,17 +77,6 @@ class Space(DomainObject):
         raise NotImplementedError(
             "There is no generic volume for the Space base class.")
 
-    @abc.abstractmethod
-    def copy(self):
-        """ Returns a copy of this Space instance.
-
-        Returns
-        -------
-        Space
-            A copy of this instance.
-        """
-        return self.__class__()
-
     def get_k_length_array(self):
         """ The length of the k vector for every pixel.
         This method is only implemented for harmonic spaces.

test/test_spaces/test_interface.py

@@ -46,13 +46,6 @@ class SpaceInterfaceTests(unittest.TestCase):
                           *method_expected_type[1:-1])) is
                 method_expected_type[-1])
 
-    @expand([[space] for space in generate_spaces()])
-    def test_copy(self, space):
-        # make sure it's a deep copy
-        assert_(space is not space.copy())
-        # make sure contents are the same
-        assert_equal(space, space.copy())
-
     @expand([[space] for space in generate_spaces()])
     def test_repr(self, space):
         assert_(space == eval(space.__repr__()))