An error when i switched from python v2.6.6 => v3.2.3

[Νίκος Γκρ33κ]

I made some progress!!! Now the htmldata's value its not -1 but 256!!!

look the error after trying this:
htmldata = os.system("python metrites.py > '/data/private/htmltemp'")

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template undefined, htmldata = 256, counter = ' <center><a href="mailto:support at superhost.gr"> ...st.gr/?show=stats"><font color=cyan> 0 </td>\n\t\t '
<type 'exceptions.TypeError'>: unsupported operand type(s) for +: 'int' and 'str' 
      args = ("unsupported operand type(s) for +: 'int' and 'str'",) 
      message = "unsupported operand type(s) for +: 'int' and 'str'"