def convert_identifier_to_key(self, identifier):
        bits = []
        
        for char in identifier:
            if char.isalnum() or char in ['_', '.', '-']:
                bits.append(char)
        
        safe_string = ''.join(bits)
        return "%s_accesses" % safe_string
Ensure equals works on points
dataset/ETHPy150Open hzlf/openbroadcast/website/apps/tastypie/throttle.py/BaseThrottle.convert_identifier_to_key--crossover with--dataset/ETHPy150Open jtauber/sebastian/tests/test_point.py/TestPoint.test_point_equality