python：acces NS api

Question

對於一個項目，我試圖通過NS api對NS（Nederlandse Spoorwegen）數據進行一些分析。

奇怪的是，從http://webservices.ns.nl/ns-api-avt?station=Dordrecht獲得站信息​​完美，但試圖從http://webservices.ns.nl/ns-api-stations獲得所有站導致HTTPError。

作品：

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) 

這兩個程序是相同的，但產生不同的結果。我錯過了什麼嗎？

的錯誤代碼：

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）解決

一個代碼，就這麼簡單：

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！對於這兩個網址。奇怪的是，另一種方式並不適用於兩者，但僅適用於一方。