Python3 在使用traceback.format_exc()的时候遇到 UnicodeDecodeError，,RT，怎么回事？try:

Python3 在使用traceback.format_exc()的时候遇到 UnicodeDecodeError，,RT，怎么回事？try:

RT，怎么回事？

try:    xxxxxexcept:    import traceback    ret['response-head']['msg'] = traceback.format_exc(1)

KeyError: '56 'During handling of the above exception, another exception occurred:Traceback (most recent call last):  File "/usr/local/python3.3/lib/python3.3/site-packages/Django-1.5-py3.3.egg/django/core/handlers/base.py", line 115, in get_response    response = callback(request, *callback_args, **callback_kwargs)  File "./videoDetectWebsite/views/index.py", line 113, in api  File "/usr/local/python3.3/lib/python3.3/traceback.py", line 270, in format_exc    format_exception(etype, value, tb, limit, chain))  File "/usr/local/python3.3/lib/python3.3/traceback.py", line 187, in format_exception    list.extend(format_tb(tb, limit))  File "/usr/local/python3.3/lib/python3.3/traceback.py", line 75, in format_tb    return format_list(extract_tb(tb, limit))  File "/usr/local/python3.3/lib/python3.3/traceback.py", line 100, in extract_tb    line = linecache.getline(filename, lineno, f.f_globals)  File "/usr/local/python3.3/lib/python3.3/linecache.py", line 15, in getline    lines = getlines(filename, module_globals)  File "/usr/local/python3.3/lib/python3.3/linecache.py", line 41, in getlines    return updatecache(filename, module_globals)  File "/usr/local/python3.3/lib/python3.3/linecache.py", line 127, in updatecache    lines = fp.readlines()  File "/usr/local/python3.3/lib/python3.3/codecs.py", line 300, in decode    (result, consumed) = self._buffer_decode(data, self.errors, final)UnicodeDecodeError: 'utf-8' codec can't decode byte 0xb8 in position 205: invalid start byteDuring handling of the above exception, another exception occurred:Traceback (most recent call last):  File "/usr/local/python3.3/lib/python3.3/logging/__init__.py", line 936, in emit    msg = self.format(record)  File "/usr/local/python3.3/lib/python3.3/logging/__init__.py", line 807, in format    return fmt.format(record)  File "/usr/local/python3.3/lib/python3.3/logging/__init__.py", line 554, in format    record.exc_text = self.formatException(record.exc_info)  File "/usr/local/python3.3/lib/python3.3/logging/__init__.py", line 504, in formatException    traceback.print_exception(ei[0], ei[1], tb, None, sio)  File "/usr/local/python3.3/lib/python3.3/traceback.py", line 162, in print_exception    print_tb(tb, limit, file)  File "/usr/local/python3.3/lib/python3.3/traceback.py", line 68, in print_tb    line = linecache.getline(filename, lineno, f.f_globals)  File "/usr/local/python3.3/lib/python3.3/linecache.py", line 15, in getline    lines = getlines(filename, module_globals)  File "/usr/local/python3.3/lib/python3.3/linecache.py", line 41, in getlines    return updatecache(filename, module_globals)  File "/usr/local/python3.3/lib/python3.3/linecache.py", line 127, in updatecache    lines = fp.readlines()  File "/usr/local/python3.3/lib/python3.3/codecs.py", line 300, in decode    (result, consumed) = self._buffer_decode(data, self.errors, final)UnicodeDecodeError: 'utf-8' codec can't decode byte 0xb8 in position 205: invalid start byteDuring handling of the above exception, another exception occurred:Traceback (most recent call last):  File "/usr/local/python3.3/lib/python3.3/site-packages/Django-1.5-py3.3.egg/django/core/handlers/wsgi.py", line 255, in __call__    response = self.get_response(request)  File "/usr/local/python3.3/lib/python3.3/site-packages/Django-1.5-py3.3.egg/django/core/handlers/base.py", line 178, in get_response    response = self.handle_uncaught_exception(request, resolver, sys.exc_info())  File "/usr/local/python3.3/lib/python3.3/site-packages/Django-1.5-py3.3.egg/django/core/handlers/base.py", line 212, in handle_uncaught_exception    'request': request  File "/usr/local/python3.3/lib/python3.3/logging/__init__.py", line 1260, in error    self._log(ERROR, msg, args, **kwargs)  File "/usr/local/python3.3/lib/python3.3/logging/__init__.py", line 1366, in _log    self.handle(record)  File "/usr/local/python3.3/lib/python3.3/logging/__init__.py", line 1376, in handle    self.callHandlers(record)  File "/usr/local/python3.3/lib/python3.3/logging/__init__.py", line 1438, in callHandlers    hdlr.handle(record)  File "/usr/local/python3.3/lib/python3.3/logging/__init__.py", line 832, in handle    self.emit(record)  File "/usr/local/python3.3/lib/python3.3/logging/__init__.py", line 944, in emit    self.handleError(record)  File "/usr/local/python3.3/lib/python3.3/logging/__init__.py", line 885, in handleError    None, sys.stderr)  File "/usr/local/python3.3/lib/python3.3/traceback.py", line 162, in print_exception    print_tb(tb, limit, file)  File "/usr/local/python3.3/lib/python3.3/traceback.py", line 68, in print_tb    line = linecache.getline(filename, lineno, f.f_globals)  File "/usr/local/python3.3/lib/python3.3/linecache.py", line 15, in getline    lines = getlines(filename, module_globals)  File "/usr/local/python3.3/lib/python3.3/linecache.py", line 41, in getlines    return updatecache(filename, module_globals)  File "/usr/local/python3.3/lib/python3.3/linecache.py", line 127, in updatecache    lines = fp.readlines()  File "/usr/local/python3.3/lib/python3.3/codecs.py", line 300, in decode    (result, consumed) = self._buffer_decode(data, self.errors, final)UnicodeDecodeError: 'utf-8' codec can't decode byte 0xb8 in position 205: invalid start byte[pid: 12907|app: 0|req: 1/1] 118.192.22.212 () {44 vars in 733 bytes} [Sat Jun  8 08:13:39 2013] POST /api/huohuaId2Url => generated 0 bytes in 550 msecs (HTTP/1.1 500) 0 headers in 0 bytes (0 switches on core 0)

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