pandas之IPython 笔记本 : What is the default encoding

我使用编码 utf-8 创建了一个包。

调用函数时，返回 DataFrame , 以 utf-8 编码的列。

在命令行中使用 IPython 时，显示此表的内容没有任何问题。使用 Notebook 时，它崩溃并显示错误 'utf8' codec can't decode byte 0xe7 .我在下面附上了完整的追溯。

使用 Notebook 的正确编码是什么？

UnicodeDecodeError                        Traceback (most recent call last) 
<ipython-input-13-92c0011919e7> in <module>() 
      3 ver = verif.VerificacaoNA() 
      4 comp, total = ver.executarCompRealFisica(DT_INI, DT_FIN) 
----> 5 comp 
 
c:\Python27-32\lib\site-packages\ipython-0.13.1-py2.7.egg\IPython\core\displayhook.pyc in __call__(self, result) 
    240             self.update_user_ns(result) 
    241             self.log_output(format_dict) 
--> 242             self.finish_displayhook() 
    243  
    244     def flush(self): 
 
c:\Python27-32\lib\site-packages\ipython-0.13.1-py2.7.egg\IPython\zmq\displayhook.pyc in finish_displayhook(self) 
     59         sys.stdout.flush() 
     60         sys.stderr.flush() 
---> 61         self.session.send(self.pub_socket, self.msg, ident=self.topic) 
     62         self.msg = None 
     63  
 
c:\Python27-32\lib\site-packages\ipython-0.13.1-py2.7.egg\IPython\zmq\session.pyc in send(self, stream, msg_or_type, content, parent, ident, buffers, subheader, track, header) 
    557  
    558         buffers = [] if buffers is None else buffers 
--> 559         to_send = self.serialize(msg, ident) 
    560         flag = 0 
    561         if buffers: 
 
c:\Python27-32\lib\site-packages\ipython-0.13.1-py2.7.egg\IPython\zmq\session.pyc in serialize(self, msg, ident) 
    461             content = self.none 
    462         elif isinstance(content, dict): 
--> 463             content = self.pack(content) 
    464         elif isinstance(content, bytes): 
    465             # content is already packed, as in a relayed message 
 
c:\Python27-32\lib\site-packages\ipython-0.13.1-py2.7.egg\IPython\zmq\session.pyc in <lambda>(obj) 
     76  
     77 # ISO8601-ify datetime objects 
---> 78 json_packer = lambda obj: jsonapi.dumps(obj, default=date_default) 
     79 json_unpacker = lambda s: extract_dates(jsonapi.loads(s)) 
     80  
 
c:\Python27-32\lib\site-packages\pyzmq-13.0.0-py2.7-win32.egg\zmq\utils\jsonapi.pyc in dumps(o, **kwargs) 
     70         kwargs['separators'] = (',', ':') 
     71  
---> 72     return _squash_unicode(jsonmod.dumps(o, **kwargs)) 
     73  
     74 def loads(s, **kwargs): 
 
c:\Python27-32\lib\json\__init__.pyc in dumps(obj, skipkeys, ensure_ascii, check_circular, allow_nan, cls, indent, separators, encoding, default, **kw) 
    236         check_circular=check_circular, allow_nan=allow_nan, indent=indent, 
    237         separators=separators, encoding=encoding, default=default, 
--> 238         **kw).encode(obj) 
    239  
    240  
 
c:\Python27-32\lib\json\encoder.pyc in encode(self, o) 
    199         # exceptions aren't as detailed.  The list call should be roughly 
    200         # equivalent to the PySequence_Fast that ''.join() would do. 
--> 201         chunks = self.iterencode(o, _one_shot=True) 
    202         if not isinstance(chunks, (list, tuple)): 
    203             chunks = list(chunks) 
 
c:\Python27-32\lib\json\encoder.pyc in iterencode(self, o, _one_shot) 
    262                 self.key_separator, self.item_separator, self.sort_keys, 
    263                 self.skipkeys, _one_shot) 
--> 264         return _iterencode(o, 0) 
    265  
    266 def _make_iterencode(markers, _default, _encoder, _indent, _floatstr, 
 
UnicodeDecodeError: 'utf8' codec can't decode byte 0xe7 in position 199: invalid continuation byte 

请您参考如下方法:

我最近遇到了同样的问题，确实将默认编码设置为 UTF-8 可以解决问题:

import sys 
reload(sys) 
sys.setdefaultencoding("utf-8") 

运行 sys.getdefaultencoding()产生 'ascii'在我的环境(Python 2.7.3)上，所以我想这是默认设置。

另见 this related question和 Ian Bicking's blog post on the subject .