> A Wednesday 02 July 2008, Hans Fangohr escrigué:
>> Hi Francesc,
>>
>> thank you for the very prompt reply; your explanation makes sense and
>> I can see where this is coming from.
>>
>> Most likely, I will modify our code to strip off any white space in
>> the relevant places: this is not particularly nice but will guarantee
>> backwards compatibility with older files. This is only relevant for
>> small sets of metadata so it is not performance critical.
>>
>> In this context: Is there any way to extract from a pytables.h5 file
>> the information whether it was written with pytables1.0 or pytables
>> 2.0? If I had that information, I could use tidy and lean code for
>> the newer files.
>
> Sure. Use the PYTABLES_FORMAT_VERSION attribute of the root. It has
> the value "2.0" (or higher) starting with PyTables 2.0. Here it is an
> example:
>
> In [13]: f1=tables.openFile("tbl1.h5")
>
> In [14]: f1.root._v_attrs.PYTABLES_FORMAT_VERSION
> Out[14]: '1.6'
>
> In [15]: f2=tables.openFile("tbl2.h5")
>
> In [16]: f2.root._v_attrs.PYTABLES_FORMAT_VERSION
> Out[16]: '2.0'
>
> As you can see, this reports the version of the *format file* and not
> the PyTables version.
>
Excellent.
Many thanks,
Hans
> Cheers,
>
> --
> Francesc Alted
> Freelance developer
> Tel +34-964-282-249
>
>
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