craw 1 : http://baike.baidu.com/item/Python/407313

Traceback (most recent call last):

  File "D:/pythonlesson1/baike_spider/spider_main.py", line 33, in <module>

    obj_spider.craw(root_url)

  File "D:/pythonlesson1/baike_spider/spider_main.py", line 19, in craw

    html_cont = self.downloader.download(new_url)

  File "D:\pythonlesson1\baike_spider\html_downloader.py", line 9, in download

    response = urllib.request.urlopen(url)

  File "D:\anaconda3.7\lib\urllib\request.py", line 222, in urlopen

    return opener.open(url, data, timeout)

  File "D:\anaconda3.7\lib\urllib\request.py", line 531, in open

    response = meth(req, response)

  File "D:\anaconda3.7\lib\urllib\request.py", line 641, in http_response

    'http', request, response, code, msg, hdrs)

  File "D:\anaconda3.7\lib\urllib\request.py", line 563, in error

    result = self._call_chain(*args)

  File "D:\anaconda3.7\lib\urllib\request.py", line 503, in _call_chain

    result = func(*args)

  File "D:\anaconda3.7\lib\urllib\request.py", line 755, in http_error_302

    return self.parent.open(new, timeout=req.timeout)

  File "D:\anaconda3.7\lib\urllib\request.py", line 525, in open

    response = self._open(req, data)

  File "D:\anaconda3.7\lib\urllib\request.py", line 548, in _open

    'unknown_open', req)

  File "D:\anaconda3.7\lib\urllib\request.py", line 503, in _call_chain

    result = func(*args)

  File "D:\anaconda3.7\lib\urllib\request.py", line 1387, in unknown_open

    raise URLError('unknown url type: %s' % type)

urllib.error.URLError: <urlopen error unknown url type: https>