crs_units error with add_speed()

[andreakoelzsch]

Message from user Arky (@cleemansen)

Guess this issue has already been reported. Using add_speed() with MoveApps Python SDK results in crs_units error.

Any workaround would be highly appreciated.

app.py

from sdk.moveapps_spec import hook_impl
from movingpandas import TrajectoryCollection
import movingpandas as mpd
import logging

class App(object):

     def __init__(self, moveapps_io):
         self.moveapps_io = moveapps_io
         logging.info(mpd.show_versions())

     @hook_impl
     def execute(self, data: TrajectoryCollection, config: dict) -> TrajectoryCollection:
         """ Testcase """
         data.add_speed()
         logging.info(f'Welcome to the {config}')
         # return some useful data for next apps in the workflow
         return data

####################

Console Output

$ python sdk.py

MovingPandas 0.16.0

SYSTEM INFO

python : 3.10.6 (main, Mar 10 2023, 10:55:28) [GCC 11.3.0] executable : /usr/bin/python machine : Linux-5.19.0-43-generic-x86_64-with-glibc2.35

GEOS, GDAL, PROJ INFO

GEOS : None GEOS lib : None GDAL : 3.6.4 GDAL data dir: /usr/local/lib/python3.10/dist-packages/fiona/gdal_data PROJ : 9.2.0 PROJ data dir: /usr/local/lib/python3.10/dist-packages/pyproj/proj_dir/share/proj

PYTHON DEPENDENCIES

geopandas : 0.13.0 pandas : 1.5.2 fiona : 1.9.4.post1 numpy : 1.24.3 shapely : 2.0.1 rtree : 1.0.1 pyproj : 3.5.0 matplotlib : 3.7.1 mapclassify: None geopy : 2.3.0 holoviews : 1.16.0 hvplot : 0.8.3 geoviews : 1.10.0 stonesoup : None

Traceback (most recent call last):

   File "/home/arky/Code/Python/MoveApps/myrepo/sdk.py", line 30, in 
<module>
     sdk = MoveAppsSdk(active_hooks=hooks)
   File "/home/arky/Code/Python/MoveApps/myrepo/sdk.py", line 23, in 
__init__
     executor.execute()
   File 
"/home/arky/Code/Python/MoveApps/myrepo/sdk/moveapps_execution.py", line 
33, in execute
     raise exception
   File 
"/home/arky/Code/Python/MoveApps/myrepo/sdk/moveapps_execution.py", line 
29, in execute
     output = self.__call_app(data)
   File 
"/home/arky/Code/Python/MoveApps/myrepo/sdk/moveapps_execution.py", line 
76, in __call_app
     outputs = self._pm.hook.execute(data=data, 
config=self.env.app_configuration)
   File "/usr/lib/python3/dist-packages/pluggy/hooks.py", line 286, in 
__call__
     return self._hookexec(self, self.get_hookimpls(), kwargs)
   File "/usr/lib/python3/dist-packages/pluggy/manager.py", line 92, in 
_hookexec
     return self._inner_hookexec(hook, methods, kwargs)
   File "/usr/lib/python3/dist-packages/pluggy/manager.py", line 83, in 
<lambda>
     self._inner_hookexec = lambda hook, methods, kwargs: hook.multicall(
   File "/usr/lib/python3/dist-packages/pluggy/callers.py", line 208, in 
_multicall
     return outcome.get_result()
   File "/usr/lib/python3/dist-packages/pluggy/callers.py", line 80, in 
get_result
     raise ex[1].with_traceback(ex[2])
   File "/usr/lib/python3/dist-packages/pluggy/callers.py", line 187, in 
_multicall
     res = hook_impl.function(*args)
   File "/home/arky/Code/Python/MoveApps/myrepo/app/app.py", line 16, in 
execute
     data.add_speed()
   File 
"/usr/local/lib/python3.10/dist-packages/movingpandas/trajectory_collection.py", 
line 391, in add_speed
     traj.add_speed(overwrite)
   File 
"/usr/local/lib/python3.10/dist-packages/movingpandas/trajectory.py", 
line 1232, in add_speed
     conversion = get_conversion(units, self.crs_units)
AttributeError: 'Trajectory' object has no attribute 'crs_units'

[cleemansen]

Thanks for the detailed issue report!

Unfortunately this error is not reproducible with the sample input data provided by the SDK (input1.pickle, .., input4.pickle).

Is it possible to provide the input file which produces this error? And a description how this input was created (by a MoveApps translator after downloading a Movebank study / self created / etc).

[andreakoelzsch]

@arky Please Arky, would you continue this error evaluation here with Clemens? Thanks!