Question

对于侧面项目，我试图通过NS api对NS（Nederlandse Spoorwegen）数据进行一些分析。

奇怪的是，从http://webservices.ns.nl/ns-api-avt?station=Dordrecht获取电台信息非常有效，但尝试从http://webservices.ns.nl/ns-api-stations获取所有电台会导致HTTP错误。

使用：

import urllib2
from xml.etree import ElementTree
import datetime, time, sys

theurl = 'http://webservices.ns.nl/ns-api-avt'
username = 'username'
password = 'password'

passman = urllib2.HTTPPasswordMgrWithDefaultRealm()
passman.add_password(None, theurl, username, password)

authhandler = urllib2.HTTPBasicAuthHandler(passman)

opener = urllib2.build_opener(authhandler)

urllib2.install_opener(opener)

specificURL = 'http://webservices.ns.nl/ns-api-avt?station=Dordrecht'

xmlHandle = urllib2.urlopen(specificURL)

不起作用：

theurl = 'http://webservices.ns.nl/ns-api-avt'
username = 'username'
password = 'password'

passman = urllib2.HTTPPasswordMgrWithDefaultRealm()
passman.add_password(None, theurl, username, password)

authhandler = urllib2.HTTPBasicAuthHandler(passman)

opener = urllib2.build_opener(authhandler)

urllib2.install_opener(opener)

specificURL = "http://webservices.ns.nl/ns-api-stations"

xmlHandle = urllib2.urlopen(specificURL)

这两个例程是相同的，但会产生不同的结果。我错过了什么吗？

错误代码：

File "stations.py", line 32, in <module>
    xmlHandle = urllib2.urlopen(specificURL)
  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/urllib2.py", line 127, in urlopen
    return _opener.open(url, data, timeout)
  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/urllib2.py", line 410, in open
    response = meth(req, response)
  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/urllib2.py", line 523, in http_response
    'http', request, response, code, msg, hdrs)
  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/urllib2.py", line 448, in error
    return self._call_chain(*args)
  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/urllib2.py", line 382, in _call_chain
    result = func(*args)
  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/urllib2.py", line 531, in http_error_default
    raise HTTPError(req.get_full_url(), code, msg, hdrs, fp)
urllib2.HTTPError: HTTP Error 401: Unauthorized

Answer 1

（部分）已解决

代码，简单如下：

import requests
url = 'http://webservices.ns.nl/ns-api-stations-v2'
username = 'username'
password = 'password'
print(requests.get(url, auth=(username, password)).content)

作品！两个网址。奇怪的是，另一种方式对两者都不起作用，但只针对一种方式。

python：访问NS api

1 个答案: