Added copy as alias of clone, use copy in algs (#131)

closes #126

2 files changed, 7 insertions, 4 deletions

diff --git a/Wrappers/Python/ccpi/framework.py b/Wrappers/Python/ccpi/framework.py
index f4cd406..485e96b 100644
--- a/Wrappers/Python/ccpi/framework.py
+++ b/Wrappers/Python/ccpi/framework.py
@@ -34,7 +34,7 @@ def find_key(dic, val):
     return [k for k, v in dic.items() if v == val][0]
 
 
-class ImageGeometry:
+class ImageGeometry(object):
     
     def __init__(self, 
                  voxel_num_x=0, 
@@ -105,7 +105,7 @@ class ImageGeometry:
         return repres
     
     
-class AcquisitionGeometry:
+class AcquisitionGeometry(object):
     
     def __init__(self, 
                  geom_type, 
@@ -571,6 +571,9 @@ class DataContainer(object):
                           dimension_labels=self.dimension_labels,
                           deep_copy=True,
                           geometry=self.geometry )
+    def copy(self):
+        '''alias of clone'''
+        return self.clone()
     
     def get_data_axes_order(self,new_order=None):
         '''returns the axes label of self as a list
diff --git a/Wrappers/Python/ccpi/optimisation/algs.py b/Wrappers/Python/ccpi/optimisation/algs.py
index a45100c..f025bbb 100755
--- a/Wrappers/Python/ccpi/optimisation/algs.py
+++ b/Wrappers/Python/ccpi/optimisation/algs.py
@@ -191,8 +191,8 @@ def CGLS(x_init, operator , data , opt=None):
     tol = opt['tol']
     max_iter = opt['iter']
     
-    r = data.clone()
-    x = x_init.clone()
+    r = data.copy()
+    x = x_init.copy()
     
     d = operator.adjoint(r)