transformation.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 Debian possible default full paths are:

/usr/share/doc/pegasus-wms-doc/tutorial/bin/transformation.py - from package: pegasus-wms-doc

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

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