start_fontypython: 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/start_fontypython - from package: fontypython

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

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