python3 socks.wrap_module方法 针对单个模块进行代理设置

wrap_module 函数实现：

def wrap_module(module):
    """Attempts to replace a module's socket library with a SOCKS socket.

    Must set a default proxy using set_default_proxy(...) first. This will
    only work on modules that import socket directly into the namespace;
    most of the Python Standard Library falls into this category."""
    if socksocket.default_proxy:
        module.socket.socket = socksocket
    else:
        raise GeneralProxyError("No default proxy specified")

必须先使用set_default_proxy(…)设置默认代理。这只在直接将socket导入命名空间的模块上有效;大多数Python标准库都属于这一类

实例如下

def urllib2_SOCKS5_test():
    socks.set_default_proxy(socks.soCKS5,"127.0.0.1",1081)
    socks.wrap_module(urllib2)
    status = urllib2.urlopen("http://api.externalip.net/ip/").getcode()
    assert status == 200