def __iter__(self):
Add delta to value in the cache. If the key does not exist, raise a
dataset/ETHPy150Open enthought/envisage/envisage/i_plugin_manager.py/IPluginManager.__iter__--crossover with--dataset/ETHPy150Open sebleier/django-redis-cache/redis_cache/backends/base.py/BaseRedisCache.incr