Python backports

subprocess_run.py

# Backport subprocess.run for Python 3.3 and 3.4

import subprocess

if not 'run' in subprocess.__all__:
    
    class CompletedProcess(object):
        def __init__(self, stdout, stderr, returncode):
            self._stdout = stdout
            self._stderr = stderr
            self._returncode = returncode
            
        @property
        def stdout(self):
            return self._stdout
        
        @property
        def stderr(self):
            return self._stderr
        
        @property
        def returncode(self):
            return self._returncode
        
        
    def run(*args, **kwargs):
        timeout = None
        if 'timeout' in kwargs:
            timeout = kwargs['timeout']
            kwargs.pop('timeout', None)
            
        process = subprocess.Popen(*args, **kwargs)
        try:
            stdout, stderr = process.communicate(timeout=timeout)
        except:
            process.kill()
            process.wait()
            raise
            
        return CompletedProcess(stdout, stderr, process.poll())
    
    setattr(subprocess, 'run', run)

Backport subprocess.run for Python 3.3 and 3.4