[GRASS-user] error while using i.segment.stats

[Veronica Andreo]

Hi,

We are trying to use i.segment.stats for a map with 800000+ segments and
already in two different laptops, we get:

bands=`g.list rast pat=IGUAZU_IMG_* sep=,`
RASTER_STATS=(min,max,range,mean,stddev,median,first_quart,third_quart,perc_90)
AREA_STATS=(area,perimeter,compact_circle,compact_square,fd)

i.segment.stats -rc \
                 map=segments_full_region \
                 rasters=$bands \
                 raster_statistics=$RASTER_STATS \
                 area_measures=$AREA_STATS \
                 vectormap=segs_stats_map \
                 processes=4
Calculating geometry statistics...
Calculating statistics for raster maps...
Exception in thread Thread-3:
Traceback (most recent call last):
  File "/usr/lib/python3.6/threading.py", line 916, in _bootstrap_inner
    self.run()
  File "/usr/lib/python3.6/threading.py", line 864, in run
    self._target(*self._args, **self._kwargs)
  File "/usr/lib/python3.6/multiprocessing/pool.py", line 463, in
_handle_results
    task = get()
  File "/usr/lib/python3.6/multiprocessing/connection.py", line 251, in recv
    return _ForkingPickler.loads(buf.getbuffer())
TypeError: __init__() missing 3 required positional arguments: 'module',
'code', and 'returncode'

Does it have to do with memory? I used the module a month ago with 500000+
segments and it worked just fine...

Any hints are more than welcome

Best,
Vero
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