fix unicode detection

ox/net.py

@@ -70,7 +70,7 @@ def read_url(url, data=None, headers=DEFAULT_HEADERS, return_headers=False, unic
     return result
 
 def detect_encoding(data):
-    if 'content="text/html; charset=utf-8"' in data or \
+    if 'content="text/html; charset=utf-8"' in data.lower() or \
         'meta charset="utf-8"' in data.lower():
         return 'utf-8'
     elif 'content="text/html; charset=iso-8859-1"' in data:

ox/web/duckduckgo.py

@@ -13,7 +13,7 @@ def find(query, timeout=ox.cache.cache_timeout):
         query = query.encode('utf-8')
     params = urllib.urlencode({'q': query})
     url = 'http://duckduckgo.com/html/?' + params
-    data = read_url(url, timeout=timeout, unicode=True)
+    data = read_url(url, timeout=timeout).decode('utf-8')
     results = []
     regex = '<a .*?class="large" href="(.+?)">(.*?)</a>.*?<div class="snippet">(.*?)</div>'
     for r in re.compile(regex, re.DOTALL).findall(data):