cmds.renderSettings() returns a string list. But you passed it directly to 
open(renderPath, 'rb') where open() expects a string (path) as its first 
argument.
You need to be more specific on which file you are trying to open. Looking at 
the example code on renderSettings(), the list it returns could contain empty 
strings in the list depending on which arguments you give, so you may have to 
perform further validation before calling open() as well.

larry

On Jul 14, 2014, at 3:09 PM, Diego Ruiz <[email protected]> wrote:

> 
> 
> Hi everyone, I'm new in the group and I'm learning about python for render, 
> I'm using Maya 2014 but I have a problem, when I call the .py file, Maya 
> tells this: 
> 
> # Attempting to send notification email
> 
> # Error: line 0: IOError: file D:\3D\jesusbuenahora\scripts\notification.py 
> line 32: 2 # 
> 
> 
> 
> I check it out many times but always appears taht message, I don't know what 
> to do, does somebody can help me please?, Thanks!!
> 
> 
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