[Numpy-discussion] optional arguments to the array constructor
Philip Austin
paustin at eos.ubc.ca
Wed Jul 7 13:15:04 CDT 2004
Todd Miller writes:
>
> OK, I think I see what you're after and agree that it's a bug. Here's
> how I'll change the behavior:
>
> >>> import numarray
> >>> a = numarray.arange(10)
> >>> b = numarray.array(a, copy=0)
> >>> a is b
> True
> >>> b = numarray.array(a, copy=1)
> >>> a is b
> False
Just to be clear -- the above is the current numarray v1.0 behavior
(at least on my machine). Numeric compatibility would additonally
require that
import numarray
a = numarray.arange(10)
theTypeCode=repr(a.type())
b = numarray.array(a, theTypeCode, copy=0)
print a is b
b = numarray.array(a, copy=1)
print a is b
produce
True
False
While currently it produces
True
True
Having said this, I can work around this difference -- so either
a note in the documentation or just removing the copy flag from
numarray.array would also be ok.
-- Thanks, Phil
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