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"""
A replacement wrapper around the subprocess module that adds
check_output (which was only added to Python in 2.7.
Instead of importing subprocess, other modules should use this as follows::
from astropy.utils.compat import subprocess
This module is safe to import from anywhere within astropy.
"""
from __future__ import absolute_import, print_function
import subprocess
from subprocess import *
# python2.7 and later provide a check_output method
if not hasattr(subprocess, 'check_output'):
from ._subprocess_py2 import check_output
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