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:
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proc
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thread-self
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root
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usr
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lib64
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python2.7
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site-packages
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dns
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files >> //proc/thread-self/root/usr/lib64/python2.7/site-packages/dns/namedict.py
# Copyright (C) 2003-2007, 2009-2011 Nominum, Inc. # # Permission to use, copy, modify, and distribute this software and its # documentation for any purpose with or without fee is hereby granted, # provided that the above copyright notice and this permission notice # appear in all copies. # # THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES # WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF # MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR # ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES # WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN # ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT # OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. """DNS name dictionary""" import dns.name class NameDict(dict): """A dictionary whose keys are dns.name.Name objects. @ivar max_depth: the maximum depth of the keys that have ever been added to the dictionary. @type max_depth: int """ def __init__(self, *args, **kwargs): super(NameDict, self).__init__(*args, **kwargs) self.max_depth = 0 def __setitem__(self, key, value): if not isinstance(key, dns.name.Name): raise ValueError('NameDict key must be a name') depth = len(key) if depth > self.max_depth: self.max_depth = depth super(NameDict, self).__setitem__(key, value) def get_deepest_match(self, name): """Find the deepest match to I{name} in the dictionary. The deepest match is the longest name in the dictionary which is a superdomain of I{name}. @param name: the name @type name: dns.name.Name object @rtype: (key, value) tuple """ depth = len(name) if depth > self.max_depth: depth = self.max_depth for i in xrange(-depth, 0): n = dns.name.Name(name[i:]) if self.has_key(n): return (n, self[n]) v = self[dns.name.empty] return (dns.name.empty, v)
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