2$ ./ping.py
Traceback (most recent call last):
  File "./ping.py", line 16, in <module>
    ping()
  File "./ping.py", line 10, in ping
    stderr=STDOUT)
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/subprocess.py", line 524, in call
    return Popen(*popenargs, **kwargs).wait()
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/subprocess.py", line 703, in __init__
    errread, errwrite) = self._get_handles(stdin, stdout, stderr)
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/subprocess.py", line 1115, in _get_handles
    c2pwrite = stdout.fileno()
AttributeError: 'tuple' object has no attribute 'fileno'
bash-3.2$