Change Details

**Steps to replicate the issue**: ``` >>> import pywikibot >>> site = pywikibot(Site) >>> site.interwiki_prefix(site) KeyError: "There is no interwiki prefix to 'wikipedia:de'" >>> wh = s.interwiki('wikihow') >>> site.interwiki_prefix(wh) KeyError: "There is no interwiki prefix to 'wikihow:en'" ``` **What happens?**: I've checked several sites and always got that KeyError **What should have happened instead?**: An interwiki prefix should be returned from a given url. Refer siteinfo['interwikimap']: https://de.wikipedia.org/w/api.php?action=query&meta=siteinfo&siprop=interwikimap **Software version** (skip for WMF-hosted wikis like Wikipedia): **Other information** (browser name/version, screenshots, etc.):

**Steps to replicate the issue**: ``` >>> import pywikibot >>> site = pywikibot(Site) >>> site.interwiki_prefix(site) KeyError: "There is no interwiki prefix to 'wikipedia:de'" >>> wh = s.interwiki('wikihow') >>> site.interwiki_prefix(wh) KeyError: "There is no interwiki prefix to 'wikihow:en'" ``` **What happens?**: I've checked several sites and always got that KeyError **What should have happened instead?**: An interwiki prefix should be returned from a given url. Refer siteinfo['interwikimap']: https://de.wikipedia.org/w/api.php?action=query&meta=siteinfo&siprop=interwikimap

**Steps to replicate the issue**: ``` >>> import pywikibot >>> site = pywikibot(Site) >>> site.interwiki_prefix(site) KeyError: "There is no interwiki prefix to 'wikipedia:de'" >>> wh = s.interwiki('wikihow') >>> site.interwiki_prefix(wh) KeyError: "There is no interwiki prefix to 'wikihow:en'" ``` **What happens?**: I've checked several sites and always got that KeyError **What should have happened instead?**: An interwiki prefix should be returned from a given url. Refer siteinfo['interwikimap']: https://de.wikipedia.org/w/api.php?action=query&meta=siteinfo&siprop=interwikimap **Software version** (skip for WMF-hosted wikis like Wikipedia): **Other information** (browser name/version, screenshots, etc.):