json.decoder.JSONDecodeError：预期值：第1行第2列（字符1）

Question

我正在尝试使用mapReduce框架来开发僧伽罗语书籍的搜索引擎。

在mapReduce框架中，有以下功能。

def execute(self, data, mapper, reducer):
        print(data)
        for line in data:
            record = json.loads(line)
            mapper(record)

        for key in self.intermediate:
            reducer(key, self.intermediate[key])

        #jenc = json.JSONEncoder(encoding='latin-1')
        jenc = json.JSONEncoder()
        banana = {}
        for item in self.result:
            print(jenc.encode(item))
            #romeo = {item[0] : item[1]}
            #banana.update(romeo)
        #print json.dumps(banana)    

但是当我输入sinhala文本输入时，会出现如下错误

Traceback (most recent call last):
  File "/home/ashirwada/Project/Project/inverted_index.py", line 67, in <module>
    mr.execute(text, mapper, reducer)
  File "/home/ashirwada/Project/Project/MapReduce.py", line 18, in execute
    record = json.loads(line)
  File "/usr/lib/python3.5/json/__init__.py", line 319, in loads
    return _default_decoder.decode(s)
  File "/usr/lib/python3.5/json/decoder.py", line 339, in decode
    obj, end = self.raw_decode(s, idx=_w(s, 0).end())
  File "/usr/lib/python3.5/json/decoder.py", line 357, in raw_decode
    raise JSONDecodeError("Expecting value", s, err.value) from None
json.decoder.JSONDecodeError: Expecting value: line 1 column 2 (char 1)

为什么会出现此错误？