Error Handle

Description

By these 2 reason,
1. Python output run time error to standard error.
2. Some BIOS standard error is not the same as standard output.

We can use try ... exception for output error to standard output
print traceback.format_exc()

Sample code

import traceback

import EfiPy

from EfiPy.MdePkg.Protocol.SimpleTextOut import     \

                    gEfiSimpleTextOutProtocolGuid,  \

                    EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL

try:

  Status = EfiPy.gBS.LocateProtocol (

             EfiPy.byref (gEfiSimpleTextOutProtocolGuid),

             None,

             EfiPy.byref (Interface)

             )

except:

  print "Exception Test"

  print traceback.format_exc()

Due to variable Interface is not initialed before EfiPy.gBS.LocateProtocol, it is exception.

screenshot