---------- Forwarded message ----------
From: Chris Morley <[email protected]>
Date: 16 August 2010 14:28
Subject: Re: .dll loading on Windows and Python
To: Noel O'Boyle <[email protected]>
Noel
This indeed is a "feature".
OBConversion::LoadFormatFiles(), which finds obf files, is called from
the OBConversion constructor. The GUI makes a dummy OBConversion
object for this purpose.
Years ago it used to be different, I think by having some sort of
static object which was initialised at startup. But somebody said it
didn't work for them and I reluctantly changed it to the present
inelegant method.
Chris
On 16/08/2010 14:16, Noel O'Boyle wrote:
>
> Hi all,
>
> On Windows (7) using Python, I've just noticed that at least some
> plugins cannot be found using FindType until an instance of an
> OBConversion() is created.
>
> Python 2.6.5 (r265:79096, Mar 19 2010, 21:48:26) [MSC v.1500 32 bit
> (Intel)] on win32
>>>>
>>>> import openbabel as ob
>>>> print ob.OBForceField.FindType("MMFF94") # Cannot find
>
> None
>>>>
>>>> print ob.OBFormat.FindType("smi")
>
> None
>
>>>> ob.OBConversion()
>
> <openbabel.OBConversion; proxy of<Swig Object of type
> 'OpenBabel::OBConversion*' at 0x0035F380> >
>
>>>> print ob.OBForceField.FindType("MMFF94") # *Can* find
>
> <openbabel.OBForceField; proxy of<Swig Object of type
> 'OpenBabel::OBForceField*' at 0x0035F260> >
>>>>
>>>> print ob.OBFormat.FindType("smi")
>
> <openbabel.OBFormat; proxy of<Swig Object of type
> 'OpenBabel::OBFormat *' at 0x0049F350> >
>
> Weird, huh? Any idea why this is? I don't think it's anything new - I
> probably just never noticed before because pybel creates an instance
> of OBConversion right at the start of the file. So anyone that imports
> pybel wouldn't notice this.
>
> - Noel
>
>
>
>
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