Merge pull request #3625 from sieben/dict_litteral

theano/d3viz/formatting.py

@@ -177,10 +177,9 @@ class PyDotFormatter(object):
             for id, var in enumerate(node.inputs):
                 var_id = self.__node_id(var.owner if var.owner else var)
                 if var.owner is None:
-                    vparams = {}
-                    vparams['name'] = var_id
-                    vparams['label'] = var_label(var)
-                    vparams['node_type'] = 'input'
+                    vparams = {'name': var_id,
+                               'label': var_label(var),
+                               'node_type': 'input'}
                     if isinstance(var, gof.Constant):
                         vparams['node_type'] = 'constant_input'
                     elif isinstance(var, theano.tensor.sharedvar.
@@ -217,13 +216,12 @@ class PyDotFormatter(object):
                 var_id = self.__node_id(var)
 
                 if var in outputs or len(var.clients) == 0:
-                    vparams = {}
-                    vparams['name'] = var_id
-                    vparams['label'] = var_label(var)
-                    vparams['node_type'] = 'output'
-                    vparams['dtype'] = type_to_str(var.type)
-                    vparams['tag'] = var_tag(var)
-                    vparams['style'] = 'filled'
+                    vparams = {'name': var_id,
+                               'label': var_label(var),
+                               'node_type': 'output',
+                               'dtype': type_to_str(var.type),
+                               'tag': var_tag(var),
+                               'style': 'filled'}
                     if len(var.clients) == 0:
                         vparams['fillcolor'] = self.node_colors['unused']
                     else: