[Numpy-discussion] Recarray attributes writeable (original) (raw)
Erin Sheldon esheldon at kicp.uchicago.edu
Fri Jun 16 17:10:43 EDT 2006
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Hi everyone -
(this is my fourth try in the last 24 hours to post this. Apparently, the gmail smtp server is in the blacklist!! this is bad).
Anyway - Recarrays have convenience attributes such that fields may be accessed through "." in additioin to the "field()" method. These attributes are designed for read only; one cannot alter the data through them. Yet they are writeable:
tr=numpy.recarray(10, formats='i4,f8,f8', names='id,ra,dec') tr.field('ra')[:] = 0.0 tr.ra array([ 0., 0., 0., 0., 0., 0., 0., 0., 0., 0.])
tr.ra = 3 tr.ra 3 tr.field('ra') array([ 0., 0., 0., 0., 0., 0., 0., 0., 0., 0.])
I feel this should raise an exception, just as with trying to write to the "size" attribute. Any thoughts?
Erin
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