[SciPy-dev] copy on write?

Robert Kern robert.kern@gmail....
Wed Jul 25 19:35:37 CDT 2007

Nathan Bell wrote:
> Is there any support for copy on write behavior in numpy?


> Short of COW, can one easily get the refcount of an ndarray (in Python)?

sys.getrefcount(obj). Note that calling sys.getrefcount() adds a reference to
obj while it's running, so the usual value is 2.

Robert Kern

"I have come to believe that the whole world is an enigma, a harmless enigma
 that is made terrible by our own mad attempt to interpret it as though it had
 an underlying truth."
  -- Umberto Eco

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