The thing is, there are plugins present. It's just that one of them happens
to have the name of "", ie. The empty string.
It's a stochastic error that happens once every 3 times or so upon import.
On Wednesday, January 21, 2015, Noel O'Boyle <baoille...@gmail.com> wrote:
> Hi Yutong Zhao,
>
> Please send openbabel emails to openbabel-disc...@lists.sf.net
> <javascript:;>.
>
> The error is because there are no plugins presents. It's true that
> pybel should have a better error message to handle this. However, if
> you don't have any plugins (e.g. formats), you will not really be able
> to use pybel for anything.
>
> Regards,
> - Noel
>
> On 21 January 2015 at 05:59, Yutong Zhao <proten...@gmail.com
> <javascript:;>> wrote:
> > Hi Noel,
> >
> > I'm not sure what's the best way to get your attention, but I've had to
> > patch _getpluginnames(ptype) in pybel.py on mac.
> >
> > Occasionally it would fail with:
> >
> >>>> import pybel
> >
> > descriptors
> >
> > Traceback (most recent call last):
> >
> > File "<stdin>", line 1, in <module>
> >
> > File "pybel.py", line 94, in <module>
> >
> > descs = _getpluginnames("descriptors")
> >
> > File "pybel.py", line 84, in _getpluginnames
> >
> > return [x.split()[0] for x in plugins]
> >
> > IndexError: list index out of range
> >
> >
> >
> > The problem is that x.split()[0] fails on an empty string (no idea why it
> > happens). So I had to add this guard:
> >
> > def _getpluginnames(ptype):
> >
> > if sys.platform[:4] == "cli":
> >
> > plugins = ob.VectorString()
> >
> > else:
> >
> > plugins = ob.vectorString()
> >
> > ob.OBPlugin.ListAsVector(ptype, None, plugins)
> >
> > if sys.platform[:4] == "java":
> >
> > plugins = [plugins.get(i) for i in range(plugins.size())]
> >
> > res = []
> >
> > for x in plugins:
> >
> > if len(x.split()) > 0:
> >
> > res.append(x)
> >
> > return res
> >
> >
> >
> > I wish I had a clue on how to debug this further, but this is a hack that
> > seems to work for now.
> >
> >
> > --
> > Yutong Zhao
> > www.proteneer.com
>
--
Yutong Zhao
www.proteneer.com
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