celeryctl.py: command not found

Have You tried accessing the binary with the full path?

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"

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