eyedropper.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/cinnamon/cinnamon-settings/bin/eyedropper.py - from package: cinnamon-common

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

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