def __init__(self, tree, filename):
    'This object is created automatically by pep8.\n\n        :param tree: an AST tree\n        :param filename: name of the file being analyzed\n                         (ignored by our checks)\n        '
    self._tree = tree
    self._errors = []
This object is created automatically by pep8.

:param tree: an AST tree
:param filename: name of the file being analyzed
                 (ignored by our checks)
def __init__(self, tree, filename):
    'This object is created automatically by pep8.\n\n        :param tree: an AST tree\n        :param filename: name of the file being analyzed\n                         (ignored by our checks)\n        '
    self._tree = tree
    self._errors = []