Phill Tornroth phill-tornroth
phill-tornroth
/ lazy_load.py
Created
January 27, 2011 22:51
Spun up a little decorator to lazy load properties that I wanted pinned to my context object. I'm using this in the context of a web request object, where I want to make things like request.current_whatever available, but I don't want to pay the penalty f
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| from collections import MutableMapping | |
| from functools import wraps | |
| def lazy_load(f): | |
| @property | |
| @wraps(f) | |
| def wrapped_fetch(self): | |
| if f.func_name not in self._d: | |
| self._d[f.func_name] = f(self) |
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