[Pytables-users] Re: Questionnaire

[Ted H. <ted...@ea...>]

Hi, I'm a new PyTables user.  I am in the process of rearchitecting a=20
simple GIS program I wrote for mapping bike routes to use PyTables (the=20=

data is currently in SDTS (iso8211) format and I have about 500MB of=20
compressed data).

>  Hi List,
>
>  Now that PyTables has passed its second birthday, we need your=20
> feedback
>  again. So, please, if you are using PyTables and like this effort to=20=

> be
>  continued and improved, take some time to respond to this
>  questionnaire; it will help us to decide what to do in the next few
>  months.
>
>  Following are our plans for the next few months, before releasing the
>  1.0 version. Could you respond to these questions by giving a
>  punctuation ranging from +5 (I absolutely need that) to 0 (I can pass
>  without this) to these planned features?
>
>  - Implement support for Variable Length values in Table columns (most
>    likely implemented in a brand-new object called VLTables).
+5  I was actually holding out for this feature after reading the SciPy=20=

presentation, but when it wasn't in 0.9, I decided to just go ahead=20
anyway.  Some of my data could be represented much more naturally with=20=

this feature.

>  - Implement relationships (apart from the existing hierarchical ones)
>    between objects in the object tree (kind of symbolic links on a
>    filesystems), and pointers to dataset regions.
+2  I would definitely use this feature, but its fairly easy to=20
workaround.

>  - Implement date support in Leaf objects (specially on Tables).
+3  Normally I am a fantic about dates (my day job is in the financial=20=

industry), but I don't happen to need them for my current project.

>  - Full index-based searches in Tables (right now, you can only set =
one
>    condition in index-accelerated searches).
+5  Since this is a GIS system, I need to query by rectangular regions=20=

(maybe there is some way to do this without already that I havn't=20
thought of?).

>  - Image support (in the sense stated in
>    http://hdf.ncsa.uiuc.edu/HDF5/doc/ADGuide/ImageSpec.html).
+0

>  Now, answer the next questions. If you don"t like to respond all of=20=

> them,
>  this is not necessary.
>
>  - What feature do you like more (not necessarily listed before)?
Automatic and fast handling of large data sets (the main feature).

>  - What feature do you miss more (not necessarily listed before)?
Don't know yet.

>  - Do you prefer seeing PyTables to become (even) faster or less =
memory
>    demanding?
Don't know yet.

>  - Which present limitations do you find more annoying?
Don't know yet.

>  - In which field of engineering, science or business are you using
>    PyTables?
Currently GIS, but might use it in financial modeling.

>  Ok, that"s all. I hope some of you will take some of his precious =
time
>  to fill-up the questionnaire. Even only one answer would be much
>  better than our sole opinion!.
I hope it useful.  Like I said, I'm new to this, so I could be off base.

>  Thanks,
Thank you for making PyTables available!

>  --
>  Francesc Altet
>  Who"s your data daddy? =A0PyTables
--
Ted Horst