py2dsc: 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/bin/py2dsc - from package: python-stdeb

You may install the required package with command apt-get install {package}
Error in other languages:
py2dsc: bevel nie gevind nie
py2dsc: comandă negăsită
py2dsc: comando não encontrado
py2dsc: commande introuvable
py2dsc: command not found
py2dsc: käsku ei ole
py2dsc: không tìm thấy lệnh
py2dsc: komanda nerasta
py2dsc: Kommando nicht gefunden.
py2dsc: kommandot finns inte
py2dsc: komut yok
py2dsc: nie znaleziono polecenia
py2dsc: níor aimsíodh an t-ordú
py2dsc: no se encontró la orden
py2dsc: no s'ha trobat l'ordre
py2dsc: opdracht niet gevonden
py2dsc: parancs nem található
py2dsc: perintah tidak ditemukan
py2dsc: príkaz nenájdený
py2dsc: příkaz nenalezen
py2dsc: команда не найдена
py2dsc: командата не е открита
py2dsc: 命令找不到
py2dsc: コマンドが見つかりません