pytables-users

[Pytables-users] Parsing hdf5 file and retrieving a list containing hdf5 components in order

[<phi...@ho...>]

Hi list,
I asked this question a month ago, but nobody answered it.
I try again we never know :).

The print method for an hdf5 file object displays the object Tree.
I would like to create a list containing the name of the hdf5 components 
in the same order as in the hdf5 file object.
I tryied walkGroups and walkNodes method but without success.

Has someone ever tryied and succeeded ?
Or do you have any suggestions?

Here is the code i used:
1.
    for node in h5file:
        components_list.append({'name':node._v_name, 
'type':node._v_attrs.CLASS})
2.
 i=0
 for group in self.__h5file.walkGroups("/"):
 components_list.append({'id':i,'name':group._v_hdf5name,'type':"Group",'shape':'','nbrows':'','filename':filename,'fixingValue':"",'valueSelection':""})
 for array in self.__h5file.listNodes(group, classname = 'Array'):
 components_list.append({'id':i,'name':array._v_hdf5name,'type':"Array",'shape':array.shape,'nbrows':array.type,'filename':filename,'fixingValue':"",'valueSelection':""})
 i=i+1
 for table in self.__h5file.listNodes(group, "Table"):               
components_list.append({'id':i,'name':table._v_hdf5name,'type':"Table",'shape':table.shape,'nbrows':table.nrows,'filename':filename,'fixingValue':"",'valueSelection':""})
i=i+1
i=i+1

Re: [Pytables-users] Parsing hdf5 file and retrieving a list containing hdf5 components in order

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

Hi,=20

If what you need is a series of lists using the same order that the
=46ile iterator returns, this would work:

    i =3D 0
    for node in h5file:
        type_node =3D node._v_attrs.CLASS
	if type_node =3D=3D "Group":
	    components_list.append({'id':i, 'name':node._v_hdf5name,
	                           'type':type_node, 'shape':'',
				   'nbrows':'', 'filename':filename,
				   'fixingValue':"", 'valueSelection':""}
	elif type_node =3D=3D "Table":
	    components_list.append({'id':i, 'name':node._v_hdf5name,
	                            'type':type_node, 'shape':node.shape,
				    'nbrows':node.nrows, 'filename':filename,
				    'fixingValue':"", 'valueSelection':""})
        i +=3D 1

or something similar, depending on your exact need.

Cheers,

A Monday 27 June 2005 16:36, phi...@ho... va escriure:
> Hi list,
> I asked this question a month ago, but nobody answered it.
> I try again we never know :).
>
> The print method for an hdf5 file object displays the object Tree.
> I would like to create a list containing the name of the hdf5 components
> in the same order as in the hdf5 file object.
> I tryied walkGroups and walkNodes method but without success.
>
> Has someone ever tryied and succeeded ?
> Or do you have any suggestions?
>
> Here is the code i used:
> 1.
>     for node in h5file:
>         components_list.append({'name':node._v_name,
> 'type':node._v_attrs.CLASS})
> 2.
>  i=3D0
>  for group in self.__h5file.walkGroups("/"):
>=20
> components_list.append({'id':i,'name':group._v_hdf5name,'type':"Group",'s=
ha
>pe':'','nbrows':'','filename':filename,'fixingValue':"",'valueSelection':"=
"}
>) for array in self.__h5file.listNodes(group, classname =3D 'Array'):
> components_list.append({'id':i,'name':array._v_hdf5name,'type':"Array",'s=
ha
>pe':array.shape,'nbrows':array.type,'filename':filename,'fixingValue':"",'=
va
>lueSelection':""}) i=3Di+1
>  for table in self.__h5file.listNodes(group, "Table"):
> components_list.append({'id':i,'name':table._v_hdf5name,'type':"Table",'s=
ha
>pe':table.shape,'nbrows':table.nrows,'filename':filename,'fixingValue':"",=
'v
>alueSelection':""}) i=3Di+1
> i=3Di+1
>
>
>
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=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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