local.py 文件源码

def sysexec(self, *argv, **popen_opts):
        """ return stdout text from executing a system child process,
            where the 'self' path points to executable.
            The process is directly invoked and not through a system shell.
        """
        from subprocess import Popen, PIPE
        argv = map_as_list(str, argv)
        popen_opts['stdout'] = popen_opts['stderr'] = PIPE
        proc = Popen([str(self)] + argv, **popen_opts)
        stdout, stderr = proc.communicate()
        ret = proc.wait()
        if py.builtin._isbytes(stdout):
            stdout = py.builtin._totext(stdout, sys.getdefaultencoding())
        if ret != 0:
            if py.builtin._isbytes(stderr):
                stderr = py.builtin._totext(stderr, sys.getdefaultencoding())
            raise py.process.cmdexec.Error(ret, ret, str(self),
                                           stdout, stderr,)
        return stdout