pyspf: 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"

On Debian possible default full paths are:

/usr/bin/pyspf - from package: spf-tools-python

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