Hi,
Does anyone know how to get fromfile and tofile to work from a 
tempfile.TemporaryFile?  Or if its not possible?

I am getting this:
 > >> import tempfile
 > >> f = tempfile.TemporaryFile()
 > >> f
<open file '<fdopen> ', mode 'w+b' at 0x01EE1728>
 > >> a = numpy.arange(10)
 > >> a.tofile(f)
Traceback (most recent call last):
  File "<input> ", line 1, in ?
IOError: first argument must be a string or open file

thanks!
tim

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