util.py: command not found

Have You tried accessing the binary with the full path?

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/share/games/oneisenough/bin/util.py - from package: oneisenough

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