utils.py

import subprocess


def and_(iter):
    """Do an and logic condition over the iterable element.

    :param iterable iter: meat for condition
    """
    for i in iter:
        if not i:
            return False

    return True


def subproc_call(args, stdin=None):
    """
    :param args: arguments for subprocess call
    :param stdin: stdin data as string
    """
    proc = subprocess.Popen(args, bufsize=4096, stdin=subprocess.PIPE,
                            stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
    result, _ = proc.communicate(stdin)
    if proc.returncode != 0:
        raise subprocess.CalledProcessError(proc.returncode,
                                            'Error while executing command')
    return result