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Location: kallithea/rhodecode/lib/vcs/utils/lazy.py - annotation
fcbcef60be02
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text/x-python
graph: fix counting of "heads" for graph, condense graph into more narrow lines instead of trying to increase its width (past certain width produces really bad html layout)
324ac367a4da 324ac367a4da 324ac367a4da 324ac367a4da 324ac367a4da 324ac367a4da 324ac367a4da 324ac367a4da 324ac367a4da 324ac367a4da 324ac367a4da 324ac367a4da 324ac367a4da 324ac367a4da 324ac367a4da 324ac367a4da 324ac367a4da 324ac367a4da 324ac367a4da c4d418b440d1 324ac367a4da 324ac367a4da 324ac367a4da 324ac367a4da 324ac367a4da c4d418b440d1 324ac367a4da 324ac367a4da | class LazyProperty(object):
"""
Decorator for easier creation of ``property`` from potentially expensive to
calculate attribute of the class.
Usage::
class Foo(object):
@LazyProperty
def bar(self):
print 'Calculating self._bar'
return 42
Taken from http://blog.pythonisito.com/2008/08/lazy-descriptors.html and
used widely.
"""
def __init__(self, func):
self._func = func
self.__module__ = func.__module__
self.__name__ = func.__name__
self.__doc__ = func.__doc__
def __get__(self, obj, klass=None):
if obj is None:
return self
result = obj.__dict__[self.__name__] = self._func(obj)
return result
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