Thank you for the reply Alex, I apologize for misunderstanding you.
If I try to call the OGR2OGR method like that: convertToShapefiles_Result = utils.OGR2OGR(utils, osm_filePath, shps_filePath, bstrOptions, None) Then I get an error message: Could not convert argument 0 for call to OGR2OGR I posted a question about this on this very mailing list earlier this year. Stéphane Lozier suggested that I should instead use: convertToShapefiles_Result = MapWinGIS.UtilsClass.OGR2OGR(utils, osm_filePath, shps_filePath, bstrOptions, None) And it worked perfectly. Since then, I am calling all MapWinGIS methods which require opening of some sort of a file like this. And they work with no problem. Otherwise I always get an error message: Could not convert argument 0 for call to "name of the method"
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