mpdlistjobs.py: 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 CentOS possible default full paths are:

/usr/bin/mpdlistjobs.py - from package: mpich2

You may install the required package with command yum install {package}

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