img2py: 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/img2py - from package: wxPython

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

On Debian possible default full paths are:

/usr/bin/img2py - from package: python-wxtools

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

Error in other languages:
img2py: bevel nie gevind nie
img2py: comandă negăsită
img2py: comando não encontrado
img2py: commande introuvable
img2py: command not found
img2py: käsku ei ole
img2py: không tìm thấy lệnh
img2py: komanda nerasta
img2py: Kommando nicht gefunden.
img2py: kommandot finns inte
img2py: komut yok
img2py: nie znaleziono polecenia
img2py: níor aimsíodh an t-ordú
img2py: no se encontró la orden
img2py: no s'ha trobat l'ordre
img2py: opdracht niet gevonden
img2py: parancs nem található
img2py: perintah tidak ditemukan
img2py: príkaz nenájdený
img2py: příkaz nenalezen
img2py: команда не найдена
img2py: командата не е открита
img2py: 命令找不到
img2py: コマンドが見つかりません