我想记录stdout和stderr来记录文件，这就是我尝试过的方法。

app = Flask(__name__)
app.logger.setLevel(logging.INFO)  # use the native logger of flask
app.logger.disabled = False
handler = logging.handlers.RotatingFileHandler(
    SYSTEM_LOG_FILENAME,
    'a',
    maxBytes=1024 * 1024 * 100,
    backupCount=20
    )

formatter = logging.Formatter(\
    "%(asctime)s - %(levelname)s - %(name)s: \t%(message)s")
handler.setFormatter(formatter)
app.logger.addHandler(handler)

@app.route('/')
def hello():

    return 'Hello World'
if __name__ == '__main__':
    app.run()  

然后，我想将控制台输出记录在文件中。如

* Running on http://127.0.0.1:5000/
127.0.0.1 - - [24/May/2013 14:55:14] "GET / HTTP/1.1" 200 -
127.0.0.1 - - [24/May/2013 14:55:14] "GET /favicon.ico HTTP/1.1" 404 -

我能做什么？