python-whiteboard: command not found

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH
/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

If it's empty, You may set the PATH variable with this command

export PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"

On Debian possible default full paths are:

/usr/bin/python-whiteboard - from package: python-whiteboard

You may install the required package with command apt-get install {package}

Error in other languages:
python-whiteboard: bevel nie gevind nie
python-whiteboard: comandă negăsită
python-whiteboard: comando não encontrado
python-whiteboard: commande introuvable
python-whiteboard: command not found
python-whiteboard: käsku ei ole
python-whiteboard: không tìm thấy lệnh
python-whiteboard: komanda nerasta
python-whiteboard: Kommando nicht gefunden.
python-whiteboard: kommandot finns inte
python-whiteboard: komut yok
python-whiteboard: nie znaleziono polecenia
python-whiteboard: níor aimsíodh an t-ordú
python-whiteboard: no se encontró la orden
python-whiteboard: no s'ha trobat l'ordre
python-whiteboard: opdracht niet gevonden
python-whiteboard: parancs nem található
python-whiteboard: perintah tidak ditemukan
python-whiteboard: príkaz nenájdený
python-whiteboard: příkaz nenalezen
python-whiteboard: команда не найдена
python-whiteboard: командата не е открита
python-whiteboard: 命令找不到
python-whiteboard: コマンドが見つかりません