1 files changed, 18 insertions, 5 deletions
diff --git a/numpy/core/_internal.py b/numpy/core/_internal.py
index 6f64f40f4..d538743b6 100644
--- a/numpy/core/_internal.py
+++ b/numpy/core/_internal.py
@@ -208,21 +208,30 @@ def _getintp_ctype():
 _getintp_ctype.cache = None
 
 # Used for .ctypes attribute of ndarray
+
+class _missing_ctypes(object):
+    def cast(self, num, obj):
+        return num
+
+    def c_void_p(self, num):
+        return num
+    
 class _ctypes(object):
-    def __init__(self, array):
+    def __init__(self, array, ptr=None):
         try:
             import ctypes
             self._ctypes = ctypes
         except ImportError:
-            raise AttributeError, "ctypes not available"
+            self._ctypes = _missing_ctypes()
         self._arr = array
+        self._data = ptr
         if self._arr.ndim == 0:
             self._zerod = True
         else:
             self._zerod = False
     
     def data_as(self, obj):
-        return self._ctypes.cast(self._arr._as_parameter_, obj)
+        return self._ctypes.cast(self._data, obj)
 
     def shape_as(self, obj):
         if self._zerod:
@@ -235,7 +244,7 @@ class _ctypes(object):
         return (obj*self._arr.ndim)(*self._arr.strides)
     
     def get_data(self):
-        return self._ctypes.c_void_p(self._arr._as_parameter_)
+        return self._ctypes.c_void_p(self._data)
 
     def get_shape(self):
         if self._zerod: 
@@ -246,7 +255,11 @@ class _ctypes(object):
         if self._zerod:
             return None
         return (_getintp_ctype()*self._arr.ndim)(*self._arr.strides)
-        
+
+    def get_as_parameter(self):
+        return self._data
+    
     data = property(get_data, None, doc="c-types data")
     shape = property(get_shape, None, doc="c-types shape")
     strides = property(get_strides, None, doc="c-types strides")
+    _as_parameter_ = property(get_as_parameter, None, doc="_as parameter_")