Python 3.4 SSL error urlopen error EOF occurred in violation of protocol

这到底是为什么会出错，我实在是想不明白。

def request_func1():
    url=""
    #url=urllib.request.Request("")
    try:
        data=urllib.request.urlopen(url).read().decode()
    except urllib.error.HTTPError as error:
        print(error.code,error.reason,error.headers)
    except urllib.error.URLError as error:
        print(error.reason)
    print(data)

request_func1()

参考了下这里：http://stackoverflow.com/questions/32115607/python-3-4-ssl-error-urlopen-error-eof-occurred-in-violation-of-protocol-ssl-c

def func3():
    from requests.adapters import HTTPAdapter
    from requests.packages.urllib3.poolmanager import PoolManager
    import ssl

    class MyAdapter(HTTPAdapter):
        def init_poolmanager(self, connections, maxsize, block=False):
            self.poolmanager = PoolManager(num_pools=connections,maxsize=maxsize,block=block,ssl_version=ssl.PROTOCOL_TLSv1)


    import requests
    s=requests.Session()
    s.mount('https://',MyAdapter())
    data=s.get("",verify=False)
    print(data.text)

后来我把这个去掉，感觉requests 也是可以用的，好奇怪

import requests
data=requests.get("",verify=False)
print(data.text)

真的太诡异了