"ValueError: invalid mode: rb" FileIO does not take the "b" mode on older python versions

[GoogleCodeExporter]

>>> sys.version
'2.6.1 (r261:67515, Jun 24 2010, 21:47:49) \n[GCC 4.2.1 (Apple Inc. build 
5646)]'


Traceback (most recent call last):
  File "/usr/local/bin/dwarfdump.py", line 5, in <module>
    pkg_resources.run_script('BinTools==0.1.0', 'dwarfdump.py')
  File "/Library/Python/2.6/site-packages/setuptools-0.6c12dev_r88846-py2.6.egg/pkg_resources.py", line 489, in run_script

  File "/Library/Python/2.6/site-packages/setuptools-0.6c12dev_r88846-py2.6.egg/pkg_resources.py", line 1214, in run_script
    self.egg_info = os.path.join(path, 'EGG-INFO')
  File "/Library/Python/2.6/site-packages/BinTools-0.1.0-py2.6.egg/EGG-INFO/scripts/dwarfdump.py", line 20, in <module>

  File "build/bdist.macosx-10.6-universal/egg/bintools/utils/__init__.py", line 90, in benchmark
  File "/Library/Python/2.6/site-packages/BinTools-0.1.0-py2.6.egg/EGG-INFO/scripts/dwarfdump.py", line 10, in dwarfdump

  File "build/bdist.macosx-10.6-universal/egg/bintools/dwarf/__init__.py", line 21, in __init__
  File "build/bdist.macosx-10.6-universal/egg/bintools/elf/__init__.py", line 19, in __init__
ValueError: invalid mode: rb
Exception AttributeError: "'DWARF' object has no attribute 'iobj'" in <bound 
method DWARF.__del__ of <bintools.dwarf.DWARF object at 0x100512710>> ignored

Original issue reported on code.google.com by Voxxar on 1 Jul 2011 at 8:11