pycrust: 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/pycrust - from package: wxPython

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

On Debian possible default full paths are:

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

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

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