Merci pour ta réponse mais voici le message d'erreur que j'obtiens :
Traceback (most recent call last):
File "c:\ma-meteo\mameteo2.py", line 23, in <module>
"/ma-meteo/xplanet.exe", "-fontsize", "24", "-conf", "/ma-meteo/maconfig", "
-output", "/ma-meteo/img/img_moon.png", "-body", "moon", "-geometry", "750x750"
File "C:\Python33\lib\subprocess.py", line 544, in check_call
raise CalledProcessError(retcode, cmd)
subprocess.CalledProcessError: Command '['/ma-meteo/xplanet.exe', '-fontsize', '
24', '-conf', '/ma-meteo/maconfig', '-output', '/ma-meteo/img/img_moon.png', '-b
ody', 'moon', '-geometry', '750x750']' returned non-zero exit status 1
Kezako ?