"""Subprocess compatibility utilities for Python 2.7/3.x."""

import subprocess

import sys

def run_subprocess(cmd, timeout=None, input_data=None, env=None):

"""Cross-platform subprocess runner for Python 2.7+ compatibility."""

if hasattr(subprocess, 'run'):

# Python 3.5+ - encode string input to bytes for subprocess

input_bytes = input_data.encode('utf-8') if isinstance(input_data, str) else input_data

return subprocess.run(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE,

input=input_bytes, timeout=timeout, env=env)

# Python 2.7, 3.3, 3.4 - no subprocess.run, no timeout support

popen = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE,

stdin=subprocess.PIPE if input_data else None, env=env)

# For Python 3.3/3.4, communicate() doesn't support timeout

# Also, Python 3.x needs bytes for stdin, Python 2.x needs str

if input_data and sys.version_info[0] >= 3 and isinstance(input_data, str):

input_data = input_data.encode('utf-8')

stdout, stderr = popen.communicate(input_data)

# Create a simple result object similar to subprocess.CompletedProcess

class Result:

def __init__(self, returncode, stdout, stderr):

self.returncode = returncode

self.stdout = stdout

self.stderr = stderr

return Result(popen.returncode, stdout, stderr)

def safe_decode(data, encoding='utf-8', errors='replace'):

"""Safe decode for Python 2.7/3.x compatibility."""

if isinstance(data, bytes):

try:

return data.decode(encoding, errors)

except UnicodeDecodeError:

return data.decode(encoding, 'replace')

return data