.

wcfs/client/_wcfs.pyx

@@ -134,7 +134,12 @@ cdef class PyFileH:
 cdef class PyMapping:
 
     def __dealloc__(PyMapping pywmmap):
-        pywmmap.wmmap = nil # XXX unmap too ?
+        # unmap just in case (double unmap is ok)
+        with nogil:
+            err = wmmap_unmap_pyexc(pywmmap.wmmap)
+        pywmmap.wmmap = nil
+        if err != nil:
+            raise pyerr(err)
 
     property blk_start:
         def __get__(PyMapping pywmmap):