[Errno 8] Exec format error running the code

[guegueniat]

Hello, I have just tried to run the code as described in the first example:

from DSSATTools import *
from datetime import datetime, timedelta

import numpy as np
import pandas as pd

DATES = pd.date_range('2000-01-01', '2010-12-31')
N = len(DATES)

df_weather = pd.DataFrame(columns = ['TMIN', 'TMAX', 'RAIN', 'SRAD', 'RHUM'],
                          index = DATES)

df_weather['TMIN'] = np.random.gamma(10, 1, N)
df_weather['TMAX'] = df_weather['TMIN'] + np.random.gamma(5., .5, N)
df_weather['RAIN'] = [0.0]* N
df_weather['SRAD'] = np.random.gamma(10, 1.5, N)
df_weather['RHUM'] = 100 * np.random.beta(1.5, 1.15, N)

WTH_DATA = WeatherData(df_weather)

coords = {'ELEV': 33,
          'LAT': 0,
          'LON': 0,
          'INSI': 'name'}

wth = WeatherStation(WTH_DATA, coords)

soil = SoilProfile(default_class='SIL')

crop = Crop('Maize')

man = Management(cultivar = 'IB0001',
                 planting_date = DATES[10])

man.simulation_controls['HARVS'] = 'A' # Automatic
man.simulation_controls['IRRIG'] = 'F' # Fixed amount automatic
man.simulation_controls['FERTI'] = 'D' # Days after planting

dssat = DSSAT()
dssat.setup()
dssat.run(soil = soil, weather = wth, crop = crop, management = man)

Then, I have got the following error:

OSError: [Errno 8] Exec format error: '/var/folders/fc/q617vtwn0n1dj5xdkq2l5ng80000gn/T/dssatrdpojkco/static/bin/dscsm048' It appears when self._execute_child is called from subprocess.py in Python 3.9 whilst run.py in DSSATTools is run .

Thank you for your help :)

[daquinterop]

Hi, what OS and Python's version are you using?

[guegueniat]

Hello,

Thank you for your quick reply.

I'm using OS Monterey 12.6.3 and Python 3.9.

[daquinterop]

Unfortunately I haven't tested the library for macOS. The error you are presenting is probably due to the DSSAT executable that the library is using, so far I've included an exe for Windows and other for Linux, but not one for macOS since I was hoping that the same exe of Linux would work on macOS. I can only recommend you to use the library on a Linux environment. I'll try to compile DSSAT on macOS for latter releases.

[guegueniat]

Hello, I have just tried with Linux through Ubuntu (22.04), on a virtual machine and I have got the same error. Would downgrading a good solution?

[guegueniat]

Updates:

• it does work on Windows
• but there must be no special characters in the user name

[quanghuy205]

I've got same error on MacOS, M1 chip. I hope there will be an update for MacOS in the next releases! Thanks!