/usr/lib/python3/dist-packages/pyVmomi/Cache.py is in python3-pyvmomi 5.5.0-2014.1.1-2.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 | # VMware vSphere Python SDK
# Copyright (c) 2008-2014 VMware, Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""
This module implements the cache decorator
"""
__author__ = "VMware, Inc."
def Cache(fn):
""" Function cache decorator """
def fnCache(*args, **kwargs):
""" Cache function """
key = (args and tuple(args) or None,
kwargs and frozenset(kwargs.items()) or None)
if key not in fn.__cached__:
fn.__cached__[key] = cache = fn(*args, **kwargs)
else:
cache = fn.__cached__[key]
return cache
def ResetCache():
""" Reset cache """
fn.__cached__ = {}
setattr(fn, "__cached__", {})
setattr(fn, "__resetcache__", ResetCache)
fnCache.__name__ = fn.__name__
fnCache.__doc__ = fn.__doc__
fnCache.__dict__.update(fn.__dict__)
return fnCache
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