20 lines
541 B
Python
20 lines
541 B
Python
# from Pyramid
|
|
|
|
|
|
class reify(object):
|
|
"""Put the result of a method which uses this (non-data)
|
|
descriptor decorator in the instance dict after the first call,
|
|
effectively replacing the decorator with an instance variable.
|
|
"""
|
|
|
|
def __init__(self, wrapped):
|
|
self.wrapped = wrapped
|
|
self.__doc__ = wrapped.__doc__
|
|
|
|
def __get__(self, inst, objtype=None):
|
|
if inst is None:
|
|
return self
|
|
val = self.wrapped(inst)
|
|
setattr(inst, self.wrapped.__name__, val)
|
|
return val
|