标签:python-3-4 beautifulsoup urllib python
我是python的新手,我知道单引号和双引号字符串没有区别.
但是我发现了一些不同的行为.
from bs4 import BeautifulSoup
import urllib.request
url1 = "http://www.backpackers.com.tw/forum/forumdisplay.php?f=310"
url2 = 'http://www.backpackers.com.tw/forum/forumdisplay.php?f=310'
如果我运行:
response = urllib.request.urlopen(url1)
结果:脚本完成无错误
如果我跑步:
response = urllib.request.urlopen(url2)
结果:错误
C:\Users\user1\Desktop\scrape>python backpacker_tw.py
Traceback (most recent call last):
File "C:\Python34\lib\urllib\request.py", line 1189, in do_open
h.request(req.get_method(), req.selector, req.data, headers)
File "C:\Python34\lib\http\client.py", line 1090, in request
self._send_request(method, url, body, headers)
File "C:\Python34\lib\http\client.py", line 1128, in _send_request
self.endheaders(body)
File "C:\Python34\lib\http\client.py", line 1086, in endheaders
self._send_output(message_body)
File "C:\Python34\lib\http\client.py", line 924, in _send_output
self.send(msg)
File "C:\Python34\lib\http\client.py", line 859, in send
self.connect()
File "C:\Python34\lib\http\client.py", line 836, in connect
self.timeout, self.source_address)
File "C:\Python34\lib\socket.py", line 509, in create_connection
raise err
File "C:\Python34\lib\socket.py", line 500, in create_connection
sock.connect(sa)
ConnectionRefusedError: [WinError 10061] No connection could be made because the
target machine actively refused it
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "backpacker_tw.py", line 7, in <module>
response = urllib.request.urlopen(url2)
File "C:\Python34\lib\urllib\request.py", line 153, in urlopen
return opener.open(url, data, timeout)
File "C:\Python34\lib\urllib\request.py", line 455, in open
response = self._open(req, data)
File "C:\Python34\lib\urllib\request.py", line 473, in _open
'_open', req)
File "C:\Python34\lib\urllib\request.py", line 433, in _call_chain
result = func(*args)
File "C:\Python34\lib\urllib\request.py", line 1215, in http_open
return self.do_open(http.client.HTTPConnection, req)
File "C:\Python34\lib\urllib\request.py", line 1192, in do_open
raise URLError(err)
urllib.error.URLError: <urlopen error [WinError 10061] No connection could be ma
de because the target machine actively refused it>
是错误还是我错过的任何东西?
C:\Users\user1\Desktop\scrape>python -V
Python 3.4.1
解决方法:
到文档! PEP 8,几乎全部都结束于python代码格式,并指出“在Python中,单引号字符串和双引号字符串是相同的.”这是由Python的创建者编写的,我将信奉他的话.
查看您的堆栈跟踪信息,我看到错误没有连接可能是错误的
de是因为目标计算机主动拒绝了它,所以也许这意味着那时服务器上发生了一些奇怪的事情?
标签:python-3-4,beautifulsoup,urllib,python 来源: https://codeday.me/bug/20191120/2045721.html
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