encoding = chardet.detect(body)['encoding']
/opt/anaconda3/envs/env/lib/python3.5/site-packages/chardet/__init__.py:39: in detect
    return detector.close()
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

self = <chardet.universaldetector.UniversalDetector object at 0x7f177ce554a8>

    def close(self):
        """
            Stop analyzing the current document and come up with a final
            prediction.
    
            :returns:  The ``result`` attribute, a ``dict`` with the keys
                       `encoding`, `confidence`, and `language`.
            """
        # Don't bother with checks if we're already done
        if self.done:
            return self.result
        self.done = True
    
        if not self._got_data:
            self.logger.debug('no data received!')
    
        # Default to ASCII if it is all we've seen so far
        elif self._input_state == InputState.PURE_ASCII:
            self.result = {'encoding': 'ascii',
                           'confidence': 1.0,
                           'language': ''}
    
        # If we have seen non-ASCII, return the best that met MINIMUM_THRESHOLD
        elif self._input_state == InputState.HIGH_BYTE:
            prober_confidence = None
            max_prober_confidence = 0.0
            max_prober = None
            for prober in self._charset_probers:
                if not prober:
                    continue
                prober_confidence = prober.get_confidence()
                if prober_confidence > max_prober_confidence:
                    max_prober_confidence = prober_confidence
                    max_prober = prober
            if max_prober and (max_prober_confidence > self.MINIMUM_THRESHOLD):
                charset_name = max_prober.charset_name
                lower_charset_name = max_prober.charset_name.lower()
                confidence = max_prober.get_confidence()
                # Use Windows encoding name instead of ISO-8859 if we saw any
                # extra Windows-specific bytes
                if lower_charset_name.startswith('iso-8859'):
                    if self._has_win_bytes:
                        charset_name = self.ISO_WIN_MAP.get(lower_charset_name,
                                                            charset_name)
                self.result = {'encoding': charset_name,
                               'confidence': confidence,
                               'language': max_prober.language}
    
        # Log all prober confidences if none met MINIMUM_THRESHOLD
        if self.logger.getEffectiveLevel() == logging.DEBUG:
            if self.result['encoding'] is None:
                self.logger.debug('no probers hit minimum threshold')
>               for prober in self._charset_probers[0].probers:
E               IndexError: list index out of range

/opt/anaconda3/envs/env/lib/python3.5/site-packages/chardet/universaldetector.py:271: IndexError