Re: [Pytables-users] pytables-2.0.1 installation and testing

[Francesc A. <fa...@ca...>]

A Wednesday 17 October 2007, Darren Dale escrigu=E9:
> > Mmm, I'm curious about which datatype should be causing this.  Can
> > you try applying the attached patch and send me the output?
>
[snip]
> datatype--> f
> datatype-->        <----
> Edatatype--> f    <----

Well, this seems to correspond to a complex type.  Apparently the go and=20
back trip to/from a netcdf3 file for complex types doesn't work as it=20
should on your machine.

The fact is that the netcdf3 module is becoming more and more dangerous=20
as the Numeric package is ageing.  Perhaps we should start to think in=20
deprecate it (unless the original contributor, Jeff Whitaker, would=20
like to contribute a complete replacement of Numeric by NumPy for it).

By the way, if what you want is to access netcdf3 files, maybe you might=20
want to look at the netcdf4-python project=20
(http://code.google.com/p/netcdf4-python/) which is being led by the=20
very same Jeff that contributed the netcdf3 module for PyTables.

> > > Is the netcdf error a known pytables bug, or is it maybe a
> > > configuration issue on my end?
> >
> > I don't know.  The NetCDF module still relies on having a proper
> > installation of Numeric, and I know that Numeric has issues in
> > 64-bit machines (specially when using Python 2.5).
>
> I know, I'm the one who discovered the issue. The folks at gentoo
> created a patch for Numeric, so it will run and pass all the tests on
> a 64 bit machine with python-2.5. I guess it is still possible that
> there are some issues not addressed by the patch and not exposed by
> Numeric's tests.

Yes, I'm afraid that there might remain non solved issues with Numeric=20
with 64-bit platforms.

> The manual does not indicate that Numeric is required for netcdf3.

You are right.  I've added a ticket on this:=20
http://www.pytables.org/trac/ticket/124

Cheers,

=2D-=20
>0,0<   Francesc Altet =A0 =A0 http://www.carabos.com/
V   V   C=E1rabos Coop. V. =A0=A0Enjoy Data
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