How to use the langdetect.lang_detect_exception.ErrorCode function in langdetect

def _detect_block(self):
        self.cleaning_text()
        ngrams = self._extract_ngrams()
        if not ngrams:
            raise LangDetectException(ErrorCode.CantDetectError, 'No features in text.')

        self.langprob = [0.0] * len(self.langlist)

        self.random.seed(self.seed)
        for t in xrange(self.n_trial):
            prob = self._init_probability()
            alpha = self.alpha + self.random.gauss(0.0, 1.0) * self.ALPHA_WIDTH

            i = 0
            while True:
                self._update_lang_prob(prob, self.random.choice(ngrams), alpha)
                if i % 5 == 0:
                    if self._normalize_prob(prob) > self.CONV_THRESHOLD or i >= self.ITERATION_LIMIT:
                        break
                    if self.verbose:
                        six.print_('>', self._sort_probability(prob))

def add_profile(self, profile, index, langsize):
        lang = profile.name
        if lang in self.langlist:
            raise LangDetectException(ErrorCode.DuplicateLangError, 'Duplicate the same language profile.')
        self.langlist.append(lang)

        for word in profile.freq:
            if word not in self.word_lang_prob_map:
                self.word_lang_prob_map[word] = [0.0] * langsize
            length = len(word)
            if 1 <= length <= 3:
                prob = 1.0 * profile.freq.get(word) / profile.n_words[length - 1]
                self.word_lang_prob_map[word][index] = prob

def load_profile(self, profile_directory):
        list_files = os.listdir(profile_directory)
        if not list_files:
            raise LangDetectException(ErrorCode.NeedLoadProfileError, 'Not found profile: ' + profile_directory)

        langsize, index = len(list_files), 0
        for filename in list_files:
            if filename.startswith('.'):
                continue
            filename = path.join(profile_directory, filename)
            if not path.isfile(filename):
                continue

            f = None
            try:
                if sys.version_info[0] < 3:
                    f = open(filename, 'r')
                else:
                    f = open(filename, 'r', encoding='utf-8')
                json_data = json.load(f)