[Pytables-users] Problem browsing the object tree

[Philou <Kal...@wa...>]

Hi list,

I'm browsing an hdf5 file using pytables 1.0 with python 2.3 and fill a 
gtk treeview.
I use a list composed with dictionaries to store the name and the type 
of node in the hdf5 file.
Here is the method i use:

    def fill_treeview(self,filename=""):
        components_list=[]
        h5file = tables.openFile(filename, "a")
        for group in h5file.walkGroups("/"):
            components_list.append({'name':group._v_name,'type':"Group"})
            for array in h5file.listNodes(group, classname = 'Array'):
                
components_list.append({'name':array.hdf5name,'type':"Array"})
            for Table in h5file.walkNodes(group, "Table"):
                
components_list.append({'name':Table.hdf5name,'type':"Table"})

        for i in range(len(components_list)):
            iter = self.__model.insert_before(None, None) 
            self.__model.set_value(iter, 0, components_list[i]['name'])
            self.__model.set_value(iter, 1, components_list[i]['type'])

I browsed the pytables several times.
I didn't find a better way to do it. The problems are:
     - i use lots of for loop -that's a memory waste-
    -  i use three differents functions to get the name of node 
(group._v_name, array.hdf5name, Table.hdf5name). Is it appropriate.
    - When i see the result, a table which is in a group is displayed 
also in the root node '/'. I don't know why.

Is there a better way to do this?

Perhaps it could be using only one loop with the node element?
for node in h5file:
    ...
In this case i don't know how to get the type of the node 
(i.e:Table,Array or Group).

Thans a lot for your answers,
Regards,
Philippe Collet