destory() now cleanup SingleImages in the sequence

docs/changes.rst

@@ -15,6 +15,11 @@ To be released.
 - Fixed :exc:`TypeError` during parsing version caused by format change of
   ImageMagick version string (introduced by 6.9.6.2).
   [:issue:`310`, `Debian bug report #841548`__]
+- Properly fixed again memory-leak when accessing images constructed in
+  :class:`Image.sequence[] <wand.sequence.Sequence>`.  It had still leaked
+  memory in the case an image is not closed using ``with`` but manual
+  :func:`wand.resource.Resource.destroy()`/:func:`wand.image.Image.close()`
+  method call.  [:issue:`237`]
 
 __ https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=841548
 

wand/image.py

@@ -2757,15 +2757,16 @@ def __init__(self, image=None, blob=None, file=None, filename=None,
             self.sequence = Sequence(self)
         self.raise_exception()
 
-    def __exit__(self, type, value, traceback):
-        """
-        Manually remove SingleImage's in the Sequence, allowing it to
-        be properly garbage collected after using a 'with Image()' context
+    def destroy(self):
+        """Manually remove :class:`~.sequence.SingleImage`'s in
+        the :class:`~.sequence.Sequence`, allowing it to
+        be properly garbage collected after using a ``with Image()`` context
         manager.
+
         """
         for i in range(0, len(self.sequence)):
             self.sequence.pop()
-        super(Image, self).__exit__(type, value, traceback)
+        super(Image, self).destroy()
 
     def read(self, file=None, filename=None, blob=None, resolution=None):
         """Read new image into Image() object.