human
Solve the following python programming problem given the following code:
def _popen(self, executable, argv, stdin = PIPE, stdout = PIPE, stderr = PIPE, cwd = None, env = None, new_session = False, **kwargs) : 
    if new_session : 
        if has_new_subprocess : 
            kwargs ['start_new_session'] = True 
else : 
            if IS_WIN32 : 
                kwargs ['creationflags'] = (kwargs.get ('creationflags', 0) | subprocess.CREATE_NEW_PROCESS_GROUP) 
else : 
                def preexec_fn(prev_fn = kwargs.get ('preexec_fn', (lambda : None))) : 
                    os.setsid () 
                    prev_fn () 
kwargs ['preexec_fn'] = preexec_fn 
if (IS_WIN32 and ('startupinfo' not in kwargs) and (stdin not in (sys.stdin, None))) : 
        from plumbum.machines._windows import get_pe_subsystem, IMAGE_SUBSYSTEM_WINDOWS_CUI 
        subsystem = get_pe_subsystem (str (executable)) 
        if (subsystem == IMAGE_SUBSYSTEM_WINDOWS_CUI) : 
            sui = subprocess.STARTUPINFO () 
            kwargs ['startupinfo'] = sui 
            if hasattr (subprocess, '_subprocess') : 
                sui.dwFlags |= subprocess._subprocess.STARTF_USESHOWWINDOW 
                sui.wShowWindow = subprocess._subprocess.SW_HIDE 
else : 
                sui.dwFlags |= subprocess.STARTF_USESHOWWINDOW 
                sui.wShowWindow = subprocess.SW_HIDE 
if ((not has_new_subprocess) and ('close_fds' not in kwargs)) : 
        if (IS_WIN32 and ((stdin is not None) or (stdout is not None) or (stderr is not None))) : 
            kwargs ['close_fds'] = False 
else : 
            kwargs ['close_fds'] = True 
if (cwd is None) : 
        cwd = self.cwd 
if (env is None) : 
        env = self.env 
if isinstance (env, BaseEnv) : 
        env = env.getdict () 
if self._as_user_stack : 
        (argv, executable) = self._as_user_stack [(- 1)] (argv) 
logger.debug ('Running %r', argv) 
    proc = IterablePopen (cwd, executable = str (executable), stdin = stdin, stdout = stdout, stderr = stderr, cwd = str (cwd), env = env, ** kwargs) 
    proc._start_time = time.time () 
    proc.encoding =...

    
    

    Fix the buggy line: proc = IterablePopen (cwd, executable = str (executable), stdin = stdin, stdout = stdout, stderr = stderr, cwd = str (cwd), env = env, ** kwargs)
assistant
#Here is Python code to fix the buggy line: proc = IterablePopen (cwd, executable = str (executable), stdin = stdin, stdout = stdout, stderr = stderr, cwd = str (cwd), env = env, ** kwargs)
.

proc = IterablePopen (argv, executable = str (executable), stdin = stdin, stdout = stdout, stderr = stderr, cwd = str (cwd), env = env, ** kwargs)