def make_key(self, key, version=None):
        if version is None:
            version = self.version

        new_key = self.key_func(key, self.key_prefix, version)
        return new_key
Set all module' __file__ attribute to an absolute path
dataset/ETHPy150Open AppScale/appscale/AppServer/lib/django-1.5/django/core/cache/backends/base.py/BaseCache.make_key--crossover with--dataset/ETHPy150Open babble/babble/include/jython/Lib/site.py/abs__file__