zhpy: 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/zhpy - from package: python-zhpy

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

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