sql_gen_objects.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

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/lib/python2.7/dist-packages/vistrails/db/bin/sql_gen_objects.py - from package: vistrails

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