>>> pywikibot.detect_site_type("http://wiki.genealogy.net/index.php/$1")
Traceback (most recent call last):
  File "<console>", line 1, in <module>
  File "C:\Users\Acer\Documents\GitHub\core\pywikibot\__init__.py", line 122, in detect_site_type
    data = request.content
  File "C:\Users\Acer\Documents\GitHub\core\pywikibot\comms\threadedhttp.py", line 496, in content
    return self.decode(self.encoding)
  File "C:\Users\Acer\Documents\GitHub\core\pywikibot\comms\threadedhttp.py", line 486, in encoding
    raise self._encoding
UnicodeDecodeError: 'utf8' codec can't decode byte 0xfc in position 10989: invalid start byte

def detect_site_type(url):
    up = urlparse(url)
    if up.scheme in ('http','https', ''):
        if up.scheme == '':
            url = 'http:' + url
        try:
            request = pywikibot.comms.http.fetch(url)
        except Exception as e:
            return 'Detection Failed : ' + str(e)
        data = request.content
    elif up.scheme == 'ftp':
        return 'Not a wikiengine site - ftp'
    elif up.scheme == 'irc':
        return 'Not a wikiengine site - irc'
    else:
        return 'No scheme satisfied'

    wp = WikiHTMLPageParser()
    wp.feed(data)
    if wp.generator:
        if "MediaWiki" not in wp.generator:
            return 'Not a MediaWiki site.'
        version = wp.generator
        return version
    else:
        return 'generator is empty'


class WikiHTMLPageParser(HTMLParser):

    """Wiki HTML page parser."""

    def __init__(self, *args, **kwargs):
        HTMLParser.__init__(self, *args, **kwargs)
        self.generator = None

    def handle_starttag(self, tag, attrs):
        attrs = dict(attrs)
        if tag == "meta":
            if attrs.get("name") == "generator":
                self.generator = attrs["content"]
        if tag == "link":
            if attrs.get("rel") == "EditURI":
                self.edituri = attrs["href"]