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authorGuido van Rossum <guido@python.org>1998-10-10 18:48:31 (GMT)
committerGuido van Rossum <guido@python.org>1998-10-10 18:48:31 (GMT)
commit3b4ca0ddad8d1e224f71e89f4c7fbc8de5c6edc4 (patch)
tree1a66ed7c7eec87f31d61a2a083096e5cad89a39c /Tools/idle/Delegator.py
parentdc1adabcb86ee0813c9bae2d5cc59be5cad1ff31 (diff)
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Initial checking of Tk-based Python IDE.
Features: text editor with syntax coloring and undo; subclassed into interactive Python shell which adds history.
Diffstat (limited to 'Tools/idle/Delegator.py')
-rw-r--r--Tools/idle/Delegator.py33
1 files changed, 33 insertions, 0 deletions
diff --git a/Tools/idle/Delegator.py b/Tools/idle/Delegator.py
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+class Delegator:
+
+ # The cache is only used to be able to change delegates!
+
+ def __init__(self, delegate=None):
+ self.delegate = delegate
+ self.__cache = {}
+
+ def __getattr__(self, name):
+ attr = getattr(self.delegate, name) # May raise AttributeError
+ setattr(self, name, attr)
+ self.__cache[name] = attr
+ return attr
+
+ def resetcache(self):
+ for key in self.__cache.keys():
+ try:
+ delattr(self, key)
+ except AttributeError:
+ pass
+ self.__cache.clear()
+
+ def cachereport(self):
+ keys = self.__cache.keys()
+ keys.sort()
+ print keys
+
+ def setdelegate(self, delegate):
+ self.resetcache()
+ self.delegate = delegate
+
+ def getdelegate(self):
+ return self.delegate