Bug#602471: pymca: package unusable

[Teemu Ikonen]

Hi,

Thanks for debugging this. I can reproduce the bug by starting pymca with

LANG=de_DE.UTF-8 pymca

Interestingly, instantiating QApplication class makes the scanf call
in the specfile module use the locale-based numeric format. See the
attached testcase.

The quick and dirty fix would be to add the line
export LC_NUMERIC=C
as a second or third line to /usr/bin/pymca

But, there is probably a smarter way to fix this.

Best,

Teemu

2010/11/5 PICCA Frédéric-Emmanuel
<frederic-emmanuel.picca at synchrotron-soleil.fr>:
> hello so I am investigating
>
> if I put print ElementL1ShellValues in the LShell.py
>
> here the output of the last lines
>
> from PyMca import LShell
>
> ...
>  [100.0, 2.5339999999999998, 17.536000000000001, 0.047, 0.59299999999999997, 0.216], [101.0, 2.5339999999999998, 17.536000000000001, 0.047, 0.59299999999999997, 0.216], [102.0, 2.5339999999999998, 17.536000000000001, 0.047, 0.59299999999999997, 0.216], [103.0, 2.5339999999999998, 17.536000000000001, 0.047, 0.59299999999999997, 0.216], [104.0, 2.5339999999999998, 17.536000000000001, 0.047, 0.59299999999999997, 0.216], [105.0, 2.5339999999999998, 17.536000000000001, 0.047, 0.59299999999999997, 0.216], [106.0, 2.5339999999999998, 17.536000000000001, 0.047, 0.59299999999999997, 0.216], [107.0, 2.5339999999999998, 17.536000000000001, 0.047, 0.59299999999999997, 0.216], [108.0, 2.5339999999999998, 17.536000000000001, 0.047, 0.59299999999999997, 0.216], [109.0, 2.5339999999999998, 17.536000000000001, 0.047, 0.59299999999999997, 0.216]]
>
> with pymca
>
> [100.0, 2.0, 17.0, 0.0, 0.0, 0.0], [101.0, 2.0, 17.0, 0.0, 0.0, 0.0], [102.0, 2.0, 17.0, 0.0, 0.0, 0.0], [103.0, 2.0, 17.0, 0.0, 0.0, 0.0], [104.0, 2.0, 17.0, 0.0, 0.0, 0.0], [105.0, 2.0, 17.0, 0.0, 0.0, 0.0], [106.0, 2.0, 17.0, 0.0, 0.0, 0.0], [107.0, 2.0, 17.0, 0.0, 0.0, 0.0], [108.0, 2.0, 17.0, 0.0, 0.0, 0.0], [109.0, 2.0, 17.0, 0.0, 0.0, 0.0]]
>
> as you can see it seems that from pymca the imported values are rounded to int values.
>
> and this is not true without.
>
> so the problem comes from this code:
>
> sf=specfile.Specfile(os.path.join(dirname, "LShellConstants.dat"))
> ElementL1ShellConstants = sf[0].alllabels()
> ElementL2ShellConstants = sf[1].alllabels()
> ElementL3ShellConstants = sf[2].alllabels()
> ElementL1ShellValues = Numeric.transpose(sf[0].data()).tolist()
>
>
> sf[0].data() gives
>
> [ 100.    2.   17.    0.    0.    0.]
>  [ 101.    2.   17.    0.    0.    0.]
>  [ 102.    2.   17.    0.    0.    0.]
>  [ 103.    2.   17.    0.    0.    0.]
>  [ 104.    2.   17.    0.    0.    0.]
>  [ 105.    2.   17.    0.    0.    0.]
>  [ 106.    2.   17.    0.    0.    0.]
>  [ 107.    2.   17.    0.    0.    0.]
>  [ 108.    2.   17.    0.    0.    0.]
>  [ 109.    2.   17.    0.    0.    0.]]
>
> so the problem is in the specfile module.
> (c module it seems)
>
> In fact if I start the program with
> LANG=C pymca it works.
>
> probably a ',' or '.' problem during double conversion.
>
> See you
>
> Frederic
>
>
>
>
> -------- Message d'origine--------
> De: debian-science-maintainers-bounces+picca=synchrotron-soleil.fr at lists.alioth.debian.org de la part de PICCA Frédéric-Emmanuel
> Date: ven. 05/11/2010 19:39
> À: Teemu Ikonen
> Cc: 602471 at bugs.debian.org
> Objet : Bug#602471: RE : Bug#602471: pymca: package unusable
>
>> The data file is ok, and importing the offending module works with the
>> standard interpreter, so the bug is most likely somehow related to
>> your environment.
>
> I reproduced this bug on two differents systems (unstable)
>
>> Or alternatively, something in my environment
>> prevents this bug from appearing.
>
>> Unless you or someone else can provide more information, it will be
>> difficult to fix this.
>
> or maybe the modules loaded before LShell has some side effect on the
> LSHell module
>
> I will try to investigate.
>
> See you
>
> Frred
>
>
>
> --
> debian-science-maintainers mailing list
> debian-science-maintainers at lists.alioth.debian.org
> http://lists.alioth.debian.org/mailman/listinfo/debian-science-maintainers
>
>
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