1 # Copyright 2010 Google Inc. All Rights Reserved. 2 # 3 # Licensed under the Apache License, Version 2.0 (the "License"); 4 # you may not use this file except in compliance with the License. 5 # You may obtain a copy of the License at 6 # 7 # http://www.apache.org/licenses/LICENSE-2.0 8 # 9 # Unless required by applicable law or agreed to in writing, software 10 # distributed under the License is distributed on an "AS IS" BASIS, 11 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 # See the License for the specific language governing permissions and 13 # limitations under the License. 14 15 import os 16 import sys 17 18 try: 19 __file__ 20 except NameError: 21 __file__ = sys.argv[0] 22 third_party_dir = os.path.dirname(os.path.abspath(__file__)) 23 ipaddr_dir = os.path.join(third_party_dir, "ipaddr") 24 sys.path.append(ipaddr_dir) # workaround for no __init__.py 25 import ipaddr 26 27 # Modules in dns/ import sibling modules by "import dns/xxx", but 28 # some platform has dns/ in global site-packages directory so we need to raise 29 # the precedence of local search path (crbug/493869). 30 # The implementation here preloads all dns/ modules into this package so clients 31 # don't need to worry about import path issue. 32 # An easier solution might be modify dns/ modules to use relative path, but I 33 # tried not to touch third_party lib for now. 34 sys.path.insert(0, third_party_dir) 35 from dns import __all__ as all_dns_modules 36 all_dns_modules = ['dns.' + m for m in all_dns_modules] 37 map(__import__, all_dns_modules) 38 sys.path.pop(0) 39
