[GRASS-dev] [GRASS-SVN] r66995 - grass-addons/grass7/vector/v.in.natura2000

[Helmut Kudrnovsky]

Hi Vaclav,


wenzeslaus wrote
> Hi Helmut,
> 
> On Tue, Dec 1, 2015 at 5:11 AM, <

> svn_grass@

> > wrote:
> 
>> +try:
>> +    import pyspatialite.dbapi2 as db
>> +except ImportError:
>> +    grass.warning( "pyspatialite has to be installed." )
>>
> 
> better than this is the approach taken in v.flexture where you let parser
> run and then you import the special dependencies. v.class.mlpy and
> especially v.class.ml are more complicated cases where the dependencies
> are
> spread more through the code but similar approach is still applicable.
> 
> As you can see from v.flexture, there was an idea to provide a way how to
> install the dependencies but this might be too difficult and suggestions
> in
> the error message or manual might be just the right thing to do.
> 
> Vaclav
> 
> https://trac.osgeo.org/grass/browser/grass-addons/grass7/vector/v.flexure/v.flexure.py
> https://trac.osgeo.org/grass/browser/grass-addons/grass7/vector/v.class.mlpy/v.class.mlpy.py
> https://trac.osgeo.org/grass/browser/grass-addons/grass7/vector/v.class.ml/v.class.ml.py

thanks for your hints.

as I'm not a python guru, I've changed it like this way to catch if
dependency pyspatalite isn't installed:

https://trac.osgeo.org/grass/changeset?reponame=&new=67009%40grass-addons%2Fgrass7%2Fvector%2Fv.in.natura2000%2Fv.in.natura2000.py&old=66995%40grass-addons%2Fgrass7%2Fvector%2Fv.in.natura2000%2Fv.in.natura2000.py

or

https://trac.osgeo.org/grass/browser/grass-addons/grass7/vector/v.in.natura2000/v.in.natura2000.py#L151




-----
best regards
Helmut
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