[Pytables-users] using pickle strings in VLArray

[Stefan K. <pon...@ya...>]

I am trying to put a pickle string into a VLArray using VLStringAtom. 
If the string is larger than a certain amount, I get an error like this
( the full error is below )

ValueError: Problems when converting the object '[snip]' to the
encoding 'utf-8'. The error was: 'ascii' codec can't decode byte 0x86
in position 4: ordinal not in range(128)
 
If it is a very short pickle string is works, but perhaps that is a red
herring. Here is the example code..

from tables import *
import cPickle

fp = openFile( 'tmp.h5', 'w' )
vlarray = fp.createVLArray( fp.root,
                            'test',
                            VLStringAtom())
vlarray.append( cPickle.dumps( ['aaa' * 130], 1 ))


and here is the full error ( displaying the pickle string )

 File "/apps/lib/python2.4/site-packages/tables/VLArray.py", line 327,
in append
    raise ValueError, "Problems when converting the object '%s' to the
encoding 'ut\
f-8'. The error was: %s" % (object, value)
ValueError: Problems when converting the object
']q^AT\206^A^@^@aaaaaaaaaaaaaaaaaaa\
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaq^Ba.' to the encoding 'utf-8'.
The error wa\
s: 'ascii' codec can't decode byte 0x86 in position 4: ordinal not in
range(128)

thanks,
Stefan


		
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