Force python mechanize/urllib2 to only use A requests?

Question

Here is a related question but I could not figure out how to apply the answer to mechanize/urllib2: how to force python httplib library to use only A requests

Basica

Answer 1

Suffering from the same problem, here is an ugly hack (use at your own risk..) based on the information given by J.J. .

This basically forces the family parameter of socket.getaddrinfo(..) to socket.AF_INET instead of using socket.AF_UNSPEC (zero, which is what seems to be used in socket.create_connection), not only for calls from urllib2 but should do it for all calls to socket.getaddrinfo(..):

#--------------------
# do this once at program startup
#--------------------
import socket
origGetAddrInfo = socket.getaddrinfo

def getAddrInfoWrapper(host, port, family=0, socktype=0, proto=0, flags=0):
    return origGetAddrInfo(host, port, socket.AF_INET, socktype, proto, flags)

# replace the original socket.getaddrinfo by our version
socket.getaddrinfo = getAddrInfoWrapper

#--------------------
import urllib2

print urllib2.urlopen("http://python.org/").read(100)

This works for me at least in this simple case.