【发布时间】:2018-10-10 02:31:38
【问题描述】:
我有一个字典列表,我想传递给一个接受 json 文件的函数。
我目前的方法是 (1) 使用 json.dumps() 将字典列表转换为 json 并 (2) 通过 StringIO() 将其作为参数传递
我得到了错误。 AttributeError: 'str' object has no attribute 'decode'
我不确定如何解决这个问题,或者即使我使用了正确的方法。任何帮助表示赞赏。
编辑:
代码示例
import tdclient as td
import json
from io import StringIO
l = [{'a': 1}, {'b':2}, {'c':3}]
l_json = json.dumps(l)
with td.Client(TD_APIKEY) as con:
con.import_file('test', 'temp', 'json', StringIO(l_json))
和错误:
---------------------------------------------------------------------------
AttributeError Traceback (most recent call last)
<ipython-input-64-d81f043acd58> in <module>()
7
8 with td.Client(TD_APIKEY) as con:
----> 9 con.import_file('test', 'temp', 'json', StringIO(l_json))
~/anaconda3/lib/python3.6/site-packages/tdclient/client.py in import_file(self, db_name, table_name, format, file, unique_id)
605 Returns: float represents the elapsed time to import data
606 """
--> 607 return self.api.import_file(db_name, table_name, format, file, unique_id=unique_id)
608
609 def results(self):
~/anaconda3/lib/python3.6/site-packages/tdclient/import_api.py in import_file(self, db, table, format, file, unique_id, **kwargs)
61 Returns: float represents the elapsed time to import data
62 """
---> 63 with contextlib.closing(self._prepare_file(file, format, **kwargs)) as fp:
64 size = os.fstat(fp.fileno()).st_size
65 return self.import_data(db, table, "msgpack.gz", fp, size, unique_id=unique_id)
~/anaconda3/lib/python3.6/site-packages/tdclient/api.py in _prepare_file(self, file_like, fmt, **kwargs)
426 packer = msgpack.Packer()
427 with contextlib.closing(self._read_file(file_like, fmt, **kwargs)) as items:
--> 428 for item in items:
429 try:
430 mp = packer.pack(item)
~/anaconda3/lib/python3.6/site-packages/tdclient/api.py in _read_json_file(self, file_like, **kwargs)
471 # current impl doesn't torelate any JSON parse error
472 for s in file_like:
--> 473 record = json.loads(s.decode("utf-8"))
474 self._validate_record(record)
475 yield record
AttributeError: 'str' object has no attribute 'decode'
【问题讨论】:
-
能否向我们展示您的代码和一些示例数据?
-
解决方案是停止尝试在字符串上调用
decode方法。如果您需要更详细的答案,您必须提供更详细的问题 - minimal reproducible example。 -
抱歉,我添加了一个例子。