automatic array_annotation value conversion to numpy arrays

Author: sprenger

neo/io/proxyobjects.py

@@ -33,12 +33,17 @@ def __init__(self, array_annotations=None, **annotations):
             # used to be str so raw bytes
             annotations['file_origin'] = str(self._rawio.source_name())
 
-        # clean annotations that are not 1D
+        if array_annotations is None:
+            array_annotations = {}
+        for k, v in array_annotations.items():
+            array_annotations[k] = np.asarray(k)
+
+        # clean array annotations that are not 1D
         # TODO remove this once multi-dimensional array_annotations are possible
         array_annotations = {k: v for k, v in array_annotations.items()
-                             if (not hasattr(v, 'ndim') or v.ndim == 1)}
+                             if v.ndim == 1}
 
-        # this mock the array annotaions to avoid inherits DataObject
+        # this mock the array annotations to avoid inherits DataObject
         self.array_annotations = ArrayDict(self.shape[-1])
         if array_annotations is not None:
             self.array_annotations.update(array_annotations)