pyp: 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/pyp - from package: pyp

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

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