[mapserver-dev] Python 3 classes missing

[Schindler, Fabian]

Hi all,

I'm experiencing a strange issue when using an RPM-packaged mapscript on
CentOS 7. I'm building against version 7.4.3.

When I import the python package, it seems that all classes are missing
from that package, whereas all instance methods (or their SWIG interfaces)
all seem to be there. For example the `mapObj`:

>>> [item for item in dir(mapscript) if 'mapObj' in item]
['delete_mapObj', 'mapObj_OWSDispatch', 'mapObj_appendOutputFormat',
'mapObj_applyConfigOptions', 'mapObj_applySLD', 'mapObj_applySLDURL',
'mapObj_cellsize_get', 'mapObj_cellsize_set', 'mapObj_clone',
'mapObj_configoptions_get', 'mapObj_convertToString',
'mapObj_datapattern_get', 'mapObj_datapattern_set', 'mapObj_debug_get',
'mapObj_debug_set', 'mapObj_defresolution_get', 'mapObj_defresolution_set',
'mapObj_draw', 'mapObj_drawLabelCache', 'mapObj_drawLegend',
'mapObj_drawQuery', 'mapObj_drawReferenceMap', 'mapObj_drawScalebar',
'mapObj_embedLegend', 'mapObj_embedScalebar', 'mapObj_extent_get',
'mapObj_extent_set', 'mapObj_fontset_get', 'mapObj_freeQuery',
'mapObj_generateSLD', 'mapObj_getConfigOption',
'mapObj_getFirstMetaDataKey', 'mapObj_getLayer', 'mapObj_getLayerByName',
'mapObj_getLayerOrder', 'mapObj_getLayersDrawingOrder',
'mapObj_getMetaData', 'mapObj_getNextMetaDataKey', 'mapObj_getNumSymbols',
'mapObj_getOutputFormat', 'mapObj_getOutputFormatByName',
'mapObj_getProjection', 'mapObj_getSize', 'mapObj_getSymbolByName',
'mapObj_height_get', 'mapObj_height_set', 'mapObj_imagecolor_get',
'mapObj_imagecolor_set', 'mapObj_imagequality_get',
'mapObj_imagequality_set', 'mapObj_imagetype_get', 'mapObj_insertLayer',
'mapObj_interlace_get', 'mapObj_interlace_set', 'mapObj_labelcache_get',
'mapObj_layerorder_get', 'mapObj_layerorder_set', 'mapObj_legend_get',
'mapObj_loadMapContext', 'mapObj_loadOWSParameters', 'mapObj_loadQuery',
'mapObj_mappath_get', 'mapObj_mappath_set', 'mapObj_maxlayers_get',
'mapObj_maxsize_get', 'mapObj_maxsize_set', 'mapObj_moveLayerDown',
'mapObj_moveLayerUp', 'mapObj_name_get', 'mapObj_name_set',
'mapObj_numlayers_get', 'mapObj_numoutputformats_get',
'mapObj_offsetExtent', 'mapObj_outputformat_get', 'mapObj_prepareImage',
'mapObj_prepareQuery', 'mapObj_processLegendTemplate',
'mapObj_processQueryTemplate', 'mapObj_processTemplate',
'mapObj_queryByFeatures', 'mapObj_queryByFilter', 'mapObj_queryByPoint',
'mapObj_queryByRect', 'mapObj_queryByShape', 'mapObj_querymap_get',
'mapObj_refcount_get', 'mapObj_reference_get', 'mapObj_removeLayer',
'mapObj_removeMetaData', 'mapObj_removeOutputFormat',
'mapObj_resolution_get', 'mapObj_resolution_set', 'mapObj_save',
'mapObj_saveMapContext', 'mapObj_saveQuery', 'mapObj_saveQueryAsGML',
'mapObj_scaleExtent', 'mapObj_scalebar_get', 'mapObj_scaledenom_get',
'mapObj_scaledenom_set', 'mapObj_selectOutputFormat', 'mapObj_setCenter',
'mapObj_setConfigOption', 'mapObj_setExtent', 'mapObj_setFontSet',
'mapObj_setImageType', 'mapObj_setLayerOrder',
'mapObj_setLayersDrawingOrder', 'mapObj_setMetaData',
'mapObj_setOutputFormat', 'mapObj_setProjection', 'mapObj_setRotation',
'mapObj_setSize', 'mapObj_setSymbolSet', 'mapObj_setWKTProjection',
'mapObj_shapepath_get', 'mapObj_shapepath_set', 'mapObj_status_get',
'mapObj_status_set', 'mapObj_swigregister', 'mapObj_symbolset_get',
'mapObj_templatepattern_get', 'mapObj_templatepattern_set',
'mapObj_transparent_get', 'mapObj_transparent_set', 'mapObj_units_get',
'mapObj_units_set', 'mapObj_web_get', 'mapObj_width_get',
'mapObj_width_set', 'mapObj_zoomPoint', 'mapObj_zoomRectangle',
'mapObj_zoomScale', 'new_mapObj']


I'm using swig3-3.0.12-17 and the package is built with a simple `python3
setup.py build`.

Any hints on what may be wrong here?

Regards,
Fabian
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