SImple wrapper around sudo on Python

sudo.py

from subprocess import call
import types

def sudo(cmd):
    cmd = 'sudo %s' % cmd

    return call(cmd, shell=True)

class SudoExecutor(type):
    def __getattr__(self, name):
        def execute(self, params=[]):
            exec_name = name
            safe = True

            if name.startswith('must_'):
                exec_name = name.replace('must_', '', 1)
                safe = False

            cmd = '%s %s' % (exec_name, ' '.join(params))
            res = sudo(cmd) is 0

            if not safe and not res:
                raise RuntimeError('Non zero exit code while `%s`' % cmd)
            
            return res

        meth = types.MethodType(execute, self, SudoExecutor)
        return meth

class Sudo:
    __metaclass__ = SudoExecutor