add support for r list with no names r_to_python

src/irace/__init__.py

@@ -56,7 +56,11 @@ def r_to_python(data):
             with localconverter(irace_converter):
               return ro.conversion.rpy2py(data)  
         elif data.rclass[0] == 'list':
-            return OrderedDict(zip(data.names, [r_to_python(elt) for elt in data]))
+            if isinstance(data.names, ri.NULLType):
+                keys = range(len(data))
+            else:
+                keys = data.names 
+            return OrderedDict(zip(keys, [r_to_python(elt) for elt in data]))
         elif data.rclass[0] in ['numeric','logical','integer','RTYPES.INTSXP','array','RTYPES.LGLSXP']:
             if len(data) == 1:
                 return data[0]

tests/test_r_to_python.py

@@ -0,0 +1,7 @@
+from rpy2.robjects import r
+from irace import r_to_python
+from collections import OrderedDict
+
+def test_no_name_list():
+    s = r('list(1, 2, "b", 3)')
+    assert r_to_python(s) == OrderedDict(zip((0, 1, 2, 3), (1, 2, 'b', 3)))