Mercurial > repos > rliterman > csp2
diff CSP2/CSP2_env/env-d9b9114564458d9d-741b3de822f2aaca6c6caa4325c4afce/lib/python3.8/idlelib/delegator.py @ 69:33d812a61356
planemo upload commit 2e9511a184a1ca667c7be0c6321a36dc4e3d116d
author | jpayne |
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date | Tue, 18 Mar 2025 17:55:14 -0400 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/CSP2/CSP2_env/env-d9b9114564458d9d-741b3de822f2aaca6c6caa4325c4afce/lib/python3.8/idlelib/delegator.py Tue Mar 18 17:55:14 2025 -0400 @@ -0,0 +1,33 @@ +class Delegator: + + def __init__(self, delegate=None): + self.delegate = delegate + self.__cache = set() + # Cache is used to only remove added attributes + # when changing the delegate. + + def __getattr__(self, name): + attr = getattr(self.delegate, name) # May raise AttributeError + setattr(self, name, attr) + self.__cache.add(name) + return attr + + def resetcache(self): + "Removes added attributes while leaving original attributes." + # Function is really about resetting delegator dict + # to original state. Cache is just a means + for key in self.__cache: + try: + delattr(self, key) + except AttributeError: + pass + self.__cache.clear() + + def setdelegate(self, delegate): + "Reset attributes and change delegate." + self.resetcache() + self.delegate = delegate + +if __name__ == '__main__': + from unittest import main + main('idlelib.idle_test.test_delegator', verbosity=2)