human
Solve the following python programming problem given the following code:
def raw_interactive(application, path = '', raise_on_wsgi_error = False, **environ) : 
    '
    Runs the application in a fake environment.
    ' 
    assert ('path_info' not in environ), 'argument list changed' 
    if raise_on_wsgi_error : 
        errors = ErrorRaiser () 
else : 
        errors = six.BytesIO () 
basic_environ = { 
        'REQUEST_METHOD' : 'GET', 
        'SCRIPT_NAME' : '', 
        'PATH_INFO' : '', 
        'SERVER_NAME' : 'localhost', 
        'SERVER_PORT' : '80', 
        'SERVER_PROTOCOL' : 'HTTP/1.0', 
        'wsgi.version' : (1, 0), 
        'wsgi.url_scheme' : 'http', 
        'wsgi.input' : six.BytesIO (), 
        'wsgi.errors' : errors, 
        'wsgi.multithread' : False, 
        'wsgi.multiprocess' : False, 
        'wsgi.run_once' : False, 
} 
    if path : 
        (_, _, path_info, query, fragment) = urlsplit (str (path)) 
        path_info = unquote (path_info) 
        (path_info, query) = (str (path_info), str (query)) 
        basic_environ ['PATH_INFO'] = path_info 
        if query : 
            basic_environ ['QUERY_STRING'] = query 
for (name, value) in environ.items () : 
        name = name.replace ('__', '.') 
        basic_environ [name] = value 
if (('SERVER_NAME' in basic_environ) and ('HTTP_HOST' not in basic_environ)) : 
        basic_environ ['HTTP_HOST'] = basic_environ ['SERVER_NAME'] 
istream = basic_environ ['wsgi.input'] 
    if isinstance (istream, bytes) : 
        basic_environ ['wsgi.input'] = six.BytesIO (istream) 
        basic_environ ['CONTENT_LENGTH'] = len (istream) 
data = { 
        
} 
    output = [] 
    headers_set = [] 
    headers_sent = [] 
    def start_response(status, headers, exc_info = None) : 
        if exc_info : 
            try : 
                if headers_sent : 
                    six.reraise (exc_info [0], exc_info [1], exc_info [2]) 
finally : 
                exc_info = None 
else : 
            if headers_set : 
                raise AssertionError ('Headers already set and no exc_info!') 
headers_set.append...

    
    

    Fix the buggy line: return (data ['status'], app_iter ['headers'], b''.join (output), errors.getvalue ())
assistant
#Here is Python program to fix the buggy line: return (data ['status'], app_iter ['headers'], b''.

return (data ['status'], data ['headers'], b''.join (output), errors.getvalue ())