Re: [Pytables-users] Indexed & .createIndex() runtime

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

Hi,

SZLIB is no necessary for HDF5 nor PyTables and besides, it is not directly
supported by PyTables (i.e. PyTable can't create files compressed with SZLIB
although it can read files compressed with SZLIB as long as the underlying
HDF5 library has support for that).

On another hand, if you install SZLIB (i.e. you drop the DLL in a directory
in the PATH) that should not hurt either.

Cheers,

A Dijous 13 Gener 2005 07:26, kevin lester va escriure:
> Hi Francesc,
>=20
> First, let me say that the field variable change did
> allow indexing.(thanks).
> =20
> After My last email, I re-Installed all packages. At
> first nothing worked. IDE's and DOS command executions
> just crashed immediately. After Fooling around for
> quite some time, I got things to work by not including
> the SZLIB files(and .dll).=20
>=20
> But... PythonWin (which is the IDE I was using before
> all this crashing) is still crashing. It was
> performing before, but did need to be re-booted after
> nearly each file upload. I don't necessarily care to
> use it. Hopefully I'll find the stability in the IDE
> I'm going to try to work with now (SPE).
>=20
> Not being as computer savvy yet as I'm going to be
> ;-), I had trouble with knowing which of the
> optionable versions of szlib I needed. But, is szlib
> even necessary??? I did'nt get that impression from
> HDF5's instructions.
>=20
> At this point I was also able to utilize 'lzo' & 'ucl'
> for compression. =20
>=20
> Anyway I'm going to see how things progress and I'll
> give a report later.
>=20
> Many, many thanks,
> Kevin
>=20
>=20
> --- Francesc Altet <fa...@ca...> wrote:
>=20
> > A Dimecres 12 Gener 2005 13:11, kevin lester va
> > escriure:
> > > I'm having problems with the zlib,lzo,ucl
> > compression
> > > libraries being available to pyTables. I planted
> > the
> > > .dlls in the /WINDOWS/SYSTEM folder and have
> > > PYTHONPATH directed there as mentioned in the
> > > installation instructions.
> >=20
> > Well, that seems good. What kind of problems are you
> > having?
> >=20
> > > I included the code below for the declaritve. The
> > > .createIndex() version was just as was shown in
> > 6.22
> > > of the tutorial=20
> > >=20
> > > >>> indexrows =3D table.cols.var1.createIndex() <<<
> >=20
> > After looking at your script, I can see that you
> > have been bitten by a known
> > bug, that prevents to name a column with a name that
> > contains another column
> > name as a substring. While I release a pytables
> > version with a cure to this,
> > you may try the next column declaration that is free
> > of this problem:
> >=20
> > class ES(IsDescription):
> >     H1       =3D Int8Col(indexed=3D1)
> >     M1       =3D Int8Col(indexed=3D1)
> >     S1       =3D Int8Col(indexed=3D1)
> >     BS      =3D Int16Col(indexed=3D1)
> >     BP      =3D Float32Col(indexed=3D1)
> >     AP      =3D Float32Col(indexed=3D1)
> >     AS      =3D Int16Col(indexed=3D1)
> >     L1       =3D Float32Col(indexed=3D1)
> >     V1       =3D Int16Col(indexed=3D1)
> >     A1       =3D Int8Col(indexed=3D1)
> >     UD      =3D BoolCol(indexed=3D1)
> >     TV      =3D Int64Col(indexed=3D1)
> >     DT      =3D Float32Col(indexed=3D1)
> >     HI      =3D Float32Col(indexed=3D1)
> >     LO      =3D Float32Col(indexed=3D1)
> >=20
> > Cheers,
> >=20
> > --=20
> > Francesc Altet     >qo<   http://www.carabos.com/
> > C=E1rabos Coop. V.   V  V   Enjoy Data
> >                     ""
> >=20
> >=20
> >=20
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>OO< =A0 Francesc Altet    ||  http://www.carabos.com/
V =A0V =A0 Carabos Coop. V.  ||  Who is your data daddy? PyTables
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