pycolor: 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/pycolor - from package: python-ipython-console

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

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