[Pytables-users] ValueError when a list of numarray.arrays used.

[Shin <sd...@em...>]

While filling up a table, I met a strange error message.
When the appended program is tried with version 0.8.1,
only the second trial to use a list of arrays raises an ValueError.
But, the manual says I can use a list of numarrays to append multi-rows.
What did I miss? Or, a bug? Thanks.

>>>>>>>>>>>>>>> test3.py <<<<<<<<<<<<<<<<<<

#!/usr/bin/env python

from numarray import *
from tables import *

# By using a list of lists.
class Cols(IsDescription):
    V1 = FloatCol()
    V2 = FloatCol()    

f = openFile("test.hd5", "w")
tab = f.createTable("/","Data",Cols,"Data")

d = []
for i in range(10):
    d = d + [[1.0,1.0]]

tab.append(d)
f.close()

# By using a list of arrays.

f = openFile("test.hd5", "w")
tab = f.createTable("/","Data",Cols,"Data")

d = []
for i in range(10):
    d = d + [array([1.0,1.0])]

tab.append(d)
f.close()

>>>>>>>>> Here is the error message caught in ipython <<<<<<

In [1]: execfile("test3.py")
---------------------------------------------------------------------------
ValueError                                Traceback (most recent call
last)

/home/sdhyok/catchlab/catchlab/catchlab/pkg/rhessys/test/<console> 

/home/sdhyok/catchlab/catchlab/catchlab/pkg/rhessys/test/test3.py 
     24 for i in range(10):
     25     d = d + [array([1.0,1.0])]
     26 
---> 27 tab.append(d)
        tab = /Data (Table(0,)) 'Data'
  description := {
    ...pe=1, dflt=0.0, pos=None) }
  byteorder := little, global append = undefined, d = [array([ 1., 
1.]), array([ 1.,  1.]), array([ 1.,  1.]), array([ 1.,  1.]), array([
1.,  1.]), array([ 1.,  1.]), array([ 1.,  1.]), array([ 1.,  1.]),
array([ 1.,  1.]), array([ 1.,  1.])]
     28 f.close()

/usr/lib/python2.3/site-packages/tables/Table.py in append(self=/Data
(Table(0,)) 'Data'
  description := {
    ...pe=1, dflt=0.0, pos=None) }
  byteorder := little, rows=[array([ 1.,  1.]), array([ 1.,  1.]),
array([ 1.,  1.]), array([ 1.,  1.]), array([ 1.,  1.]), array([ 1., 
1.]), array([ 1.,  1.]), array([ 1.,  1.]), array([ 1.,  1.]), array([
1.,  1.])])
    588         except:
    589             (type, value, traceback) = sys.exc_info()
--> 590             raise ValueError, \
        global ValueError = undefined, global str = undefined, self =
/Data (Table(0,)) 'Data'
  description := {
    ...pe=1, dflt=0.0, pos=None) }
  byteorder := little, value = <exceptions.IndexError instance>
    591 "rows parameter cannot be converted into a recarray object
compliant with table '%s'. The error was: <%s>" % (str(self), value)
    592         lenrows = recarray.shape[0]

ValueError: rows parameter cannot be converted into a recarray object
compliant with table '/Data (Table(0,)) 'Data''. The error was: <list
index out of range>

-- 
Daehyok Shin (Peter)
Geography Department
Univ. of North Carolina-Chapel Hill