Hi Vince,
On 23 Sep 2007, at 01:52, Vince Fulco wrote:
> Dear Pytable Experts-
>
> Making my first leap to an actual table creation exercise and am
> unable to define the table columns specifically enough. I've tried
> modding both the "Particle" class example and the "Event" example to
> know avail. The error message begins with the first column header
> type "not defined". Could someone clarify if the column types are too
> generic (having taken them from the examples as is) or if the data I
> am trying to import into the table is not a fit. I am trying to
> import a list of numpy ndarrays. I was under the impression from the
> examples that it was not necessary to describe each column down to the
> minute detail and the software had some auto-config capabilities.
>
> I am using an ancient laptop running Windows XP with python 5.0,
> pytables 2.0 and the most recent version of numpy. All tests passed.
>
> Snippet of code is below..
> #
> class prices(IsDescription):
> yy = Int8Col()
> mm = Int16Col()
> dd = Int16Col()
> hh = Int16Col()
> mn = Int16Col()
> ss = Int16Col()
> priceone = Float16Col()
> pricetwo = Float16Col()
> pricethree = Float16Col()
> pricefour = Float16Col()
> activity = Int16Col()
> """
> Or
> #
> Event = {
> "yy" : Int8Col(),
> "mm" : Int8Col(),
> "dd" : Int8Col(),
> "hh" : Int8Col(),
> "mn" : Int8Col(),
> "ss" : Int8Col(),
> "priceone" : Float16Col(),
> "pricetwo" : Float16Col(),
> "pricethree" : Float16Col(),
> "pricefour" : Float16Col(),
> "activity" : Int8Col(),
> }
>
>
> #
> error code
> Traceback (most recent call last):
> File "C:\datamung\numpy2pytablesv03.py", line 41, in
> "yy" : Int8Col(),
> NameError: name 'Int8Col' is not defined
>
> #
>
I think to remember that the examples assume that you have a line like::
from tables import *
at the beginning of your code. Then, all these objects should be
visible.
Alternatively, if you don't like to 'pollute' your name space with
all the pytables objects, could use ``tables.Int8Col()`` in your
source instead of ``Int8Col()``.
Hope that helps,
Hans
> Thanks much, Vince Fulco
>
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--
Hans Fangohr
School of Engineering Sciences
University of Southampton
Phone: +44 (0) 238059 8345
Email: [EMAIL PROTECTED]
http://www.soton.ac.uk/~fangohr
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