[Pytables-users] question about memory when opening hdf5 file.

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

Hi list,

Is there a lot of things done when we excecute 
tables.openFile(filename,mode)?

In my program, i need to use the file object at the beginning and at the 
end of the use of it.
For the moment, i open the file, retrieve attributes and close the file 
object.

When the user needs to modify data, i open a new object file, save  the 
data and close the file.

Finally, i need to retrieve all the data so i open the file another time 
and close it after.
That was to avoid memory waste.

Do you think it's better to open the file at the beginning and keep the 
file object and reuse it for saving data and retrieve all data?
Thanks a lot for your suggestions,
Philippe Collet