def open(self):
    'initialize visit variables and statistics'
    self._tryfinallys = []
    self.stats = self.linter.add_stats(module=0, function=0, method=0, class_=0)
initialize visit variables and statistics
def open(self):
    
    self._tryfinallys = []
    self.stats = self.linter.add_stats(module=0, function=0, method=0, class_=0)