Python：使用osmapi执行查询时，列表索引超出范围

Question

嗨，我也是osmapi和python的新手。我正在编写一个脚本来使用osmapi执行一些查询，直到我收到此错误并且数据似乎在此链接https://www.openstreetmap.org/way/77517260上工作，并且对于xml响应https://api.openstreetmap.org/api/0.6/way/77517260也是如此。

当我测试另一种方式ID它的工作原理，但这个id 77517260没有，这里是以下错误：

---------------------------------------------------------------------------
IndexError                                Traceback (most recent call last)
~/.pyenv/versions/3.6.4/lib/python3.6/site-packages/osmapi/OsmApi.py in _OsmResponseToDom(self, response, tag, single)
   2060             all_data = osm_dom.getElementsByTagName(tag)
-> 2061             first_element = all_data[0]
   2062         except (xml.parsers.expat.ExpatError, IndexError) as e:

IndexError: list index out of range

During handling of the above exception, another exception occurred:

XmlResponseInvalidError                   Traceback (most recent call last)
<ipython-input-20-79d93245d84a> in <module>
----> 1 way = api.NodeWays(77517260)

~/.pyenv/versions/3.6.4/lib/python3.6/site-packages/osmapi/OsmApi.py in NodeWays(self, NodeId)
    513         uri = "/api/0.6/node/%d/ways" % NodeId
    514         data = self._get(uri)
--> 515         ways = self._OsmResponseToDom(data, tag="way")
    516         result = []
    517         for way in ways:

~/.pyenv/versions/3.6.4/lib/python3.6/site-packages/osmapi/OsmApi.py in _OsmResponseToDom(self, response, tag, single)
   2062         except (xml.parsers.expat.ExpatError, IndexError) as e:
   2063             raise XmlResponseInvalidError(
-> 2064                 "The XML response from the OSM API is invalid: %r" % e
   2065             )
   2066 

XmlResponseInvalidError: The XML response from the OSM API is invalid: IndexError('list index out of range',)

我的python代码：

import osmapi as osm
api = osm.OsmApi()
way = api.NodeWays(77517260)

Answer 1

首先 - 您应该在构造函数中传递url和凭据：

api = osm.OsmApi(api="https://api.openstreetmap.org", username="username", password="secret")

接下来-api/0.6/way/{id} - 也许你正在寻找WayGet方法。

码：

import osmapi as osm
api = osm.OsmApi(api="https://api.openstreetmap.org", username="username", password="secret")
way = api.WayGet(77517260)