[Numpy-svn] r5692 - trunk/numpy/core

numpy-svn@scip... numpy-svn@scip...
Sun Aug 24 15:56:52 CDT 2008


Author: matthew.brett@gmail.com
Date: 2008-08-24 15:56:30 -0500 (Sun, 24 Aug 2008)
New Revision: 5692

Modified:
   trunk/numpy/core/memmap.py
Log:
Note on mmap size on python 2.5 from numpy book

Modified: trunk/numpy/core/memmap.py
===================================================================
--- trunk/numpy/core/memmap.py	2008-08-24 12:16:50 UTC (rev 5691)
+++ trunk/numpy/core/memmap.py	2008-08-24 20:56:30 UTC (rev 5692)
@@ -75,6 +75,14 @@
     Given a memmap ``fp``, ``isinstance(fp, numpy.ndarray)`` returns
     ``True``.
 
+    Notes 
+    -----
+
+    Memory-mapped arrays use the the Python memory-map object which
+    (prior to Python 2.5) does not allow files to be larger than a
+    certain size depending on the platform. This size is always < 2GB
+    even on 64-bit systems.
+
     Examples
     --------
     >>> data = np.arange(12, dtype='float32')



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