如何讀取/ etc/hosts？

Question

默認情況下，Twisted在連接到Linux系統上的網站時讀取/etc/hosts。我只是想知道哪個扭曲文件選擇/etc/hosts，所以我可以進入並將其更改爲我選擇的文件？

Answer 1

您正在查找的代碼是在Resolver Object line 621。如果您想更改您傳遞所需主機文件的解析程序的行爲，如下所示。

from twisted.names import client 
from twisted.internet import reactor 

def do_lookup(domain): 
    hosts = "/tmp/example" 
    resolver = client.createResolver(servers=None, resolvconf=None, hosts="/tmp/example") 
    d = resolver.getHostByName(domain) 
    d.addBoth(lookup_done) 

def lookup_done(result): 
    print(result) 
    reactor.stop() 

domain = b'twistfoo.com' 
reactor.callLater(0, do_lookup, domain) 
reactor.run()