Hi,

There is the same/similar problem on the Matlab side (as there is no writing and reading of xml-files including the time group).

So a general hint for all. If you just want to set sensor_time to some value, you can do this by these method calls

timeNow
ArrayOfTimeSetConstant( sensor_time, 1, time )

Bye,

Patrick


On 2021-02-16 14:53, eric.sauvag...@iap.unibe.ch wrote:
Dear ARTS community,


In order to try a recent fix suggested and implemented (commit n. 5951a72fbef6d7ac9a3de8d2c503b58ef5af7d17, fromTyphon mailing list) on the development version of ARTS I came into another problem trying to implement my ground-based retrievals through PyARTS. In fact, I can't succeed anymore in setting the sensor_time variable through PyARTS, which is then required to perform the retrievals.


I'm not sure if something got mixed maybe between the 2 ARTS version installed on my laptop and the 2 attached PyARTS versions (each in a separate conda env) or if this is really a bug from the development version.


As a very short example, please find below a minimalist python script that reproduces the problem. It seems to work fine if I use ARTS2.4 and produces the following error with ARTS Dev version:



###############################################################################
import os
import numpy as np
import xarray as xr
import matplotlib.pyplot as plt

from pyarts.workspace import Workspace, arts_agenda
from dotenv import load_dotenv

#load_dotenv('/home/eric/Documents/PhD/ARTS/arts-examples/.env.t490-arts2.5')
load_dotenv('/home/eric/Documents/PhD/ARTS/arts-examples/.env.t490-arts2.4')
ARTS_DATA_PATH = os.environ['ARTS_DATA_PATH']
ARTS_BUILD_PATH = os.environ['ARTS_BUILD_PATH']
ARTS_INCLUDE_PATH = os.environ['ARTS_INCLUDE_PATH']

def test_sensor():
     # Initializing Workspace object
     ws = Workspace(verbosity=0, agenda_verbosity=0)
     ws.execute_controlfile("general/general.arts")
     ws.execute_controlfile("general/agendas.arts")
     ws.execute_controlfile("general/continua.arts")
     ws.execute_controlfile("general/planet_earth.arts")

     ws.sensor_los = np.array([50])
     ws.sensor_pos = np.array([1e3])
     ws.sensor_time =  np.array([1])

     print('sensor_time is :', ws.sensor_time.value)

if __name__=="__main__":
     test_sensor()

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



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