<commit_before>'''Backend exception hierarchy'''


class BackendError(Exception):
    '''Base exception for all problems with the backend.'''
    pass


class BadTypeError(BackendError):
    pass


class TimeOrderError(BackendError):<commit_msg>Add exception for selector errors<commit_after>'''Backend exception hierarchy'''


class BackendError(Exception):
    '''Base exception for all problems with the backend.'''
    pass


class BadTypeError(BackendError):
    pass


class BadSelectorError(BackendError):
    pass


class TimeOrderError(BackendError):
{'fraction_non_alphanumeric': 0.09481216457960644, 'fraction_numerical': 0.0, 'mean_word_length': 5.363636363636363, 'pattern_counts': {'":': 0, '<': 3, '<?xml version=': 0, '>': 3, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
{'dir': 'git-commits-cleaned', 'id': '6683152', 'n_tokens_mistral': 147, 'n_tokens_neox': 146, 'n_words': 44}