A fast and thorough lazy object proxy.
- Free software: BSD license
Note that this is based on wrapt‘s ObjectProxy with one big change: it calls a function the first time the proxy object is used, while wrapt.ObjectProxy just forwards the method calls to the target object.
In other words, you use lazy-object-proxy when you only have the object way later and you use wrapt.ObjectProxy when you want to override few methods (by subclassing) and forward everything else to the target object.
def expensive_func(): # create expensive object return stuff obj = lazy_object_proxy.Proxy(expensive_func) # function is called only when object is actually used print(obj.foobar) # now expensive_func is called
pip install lazy-object-proxy
To run the all tests run: