Question

我收到了消息：你的程序中有一个错误：期望一个缩进的块在这里第4行，打印数据。

class listener(StreamListener):
    def on_data(self, data):
        try:
        print data
        saveFile = open('UkmDB','a')
        saveFile.write(data)
        saveFile.write('\n')
        saveFile.close()
        return True
    except BaseException, e:
        print 'failed ondata,',str(e)
        time.sleep(5)

Answer 1

try:之后你需要缩进：

class listener(StreamListener):
    def on_data(self, data):
        try:
            print data
            saveFile = open('UkmDB','a')
            saveFile.write(data)
            saveFile.write('\n')
            saveFile.close()
            return True
        except BaseException, e:
            print 'failed ondata,',str(e)
            time.sleep(5)

Answer 2

class listener(StreamListener):
  def on_data(self, data):
    try:
        print data
        saveFile = open('UkmDB','a')
        saveFile.write(data)
        saveFile.write('\n')
        saveFile.close()
        return True
    except BaseException, e:
        print 'failed ondata,',str(e)
        time.sleep(5)

python中的缩进块

2 个答案: