Re: [Pytables-users] pytables bug when checking file access rights

[Francesc A. <fa...@ca...>]

A Dimarts 22 Agost 2006 21:45, Alexandre Fayolle va escriure:
> Hi,
>
> I'm running into a weird problem with an application using pytables on
> Windows XP: tables.openFile refuses to create a file on the Desktop,
> because 'the directory exists but it cannot be written'. At the same
> time, I'm able to use the builtin function open() to create a file in
> the same directory. Here is a sample interactive session ('Bureau' is
>
> MS french for 'Desktop'):
> >>> f =3D open('../../Bureau/toto.txt', 'w')
> >>> f.write('toto')
> >>> f.close()
> >>> import tables
> >>> hdf =3D tables.openFile('../../Bureau/toto.h5', 'w')
>
> Traceback (most recent call last):
>   File "<stdin>", line 1, in ?
>   File "C:\Python24\Lib\site-packages\tables\File.py", line 227, in
> openFile
>     METADATA_CACHE_SIZE, nodeCacheSize)
>   File "hdf5Extension.pyx", line 580, in hdf5Extension.File.__new__
>   File "C:\Python24\Lib\site-packages\tables\utils.py", line 587, in
> checkFileAccess
>     raise IOError("directory ``%s`` exists but it can not be written"
> IOError: directory ``../../Bureau`` exists but it can not be written

I've just tried this in a Windows machine (with Spanish language) and this=
=20
seems to work for me (using WinXP with SP1, I think):

C:\Documents and Settings\Francesc\Escritorio\pytables-1.3\std-1.3>python
Python 2.3.3 (#51, Dec 18 2003, 20:22:39) [MSC v.1200 32 bit (Intel)] on wi=
n32
Type "help", "copyright", "credits" or "license" for more information.
>>> import tables
>>> f=3Dtables.openFile('../../Escritorio/hola.h5', 'w')
>>> f.createGroup('/', 'hola')
/hola (Group) ''
  children :=3D []
>>> f.root.hola
/hola (Group) ''
  children :=3D []
>>>=20

Also, I've double checked that os.access is working properly:

C:\Documents and Settings\Francesc\Escritorio\pytables-1.3>python
Python 2.3.3 (#51, Dec 18 2003, 20:22:39) [MSC v.1200 32 bit (Intel)] on wi=
n32
Type "help", "copyright", "credits" or "license" for more information.
>>> import os
>>> os.access('..\..\Escritorio', os.W_OK)
True
>>>

So everything is working well here. Mmm... perhaps a bug in French Win? Tha=
t's=20
very bizarre indeed.

Cheers,

=2D-=20
>0,0<   Francesc Altet =C2=A0 =C2=A0 http://www.carabos.com/
V   V   C=C3=A1rabos Coop. V. =C2=A0=C2=A0Enjoy Data
 "-"