Merge branch 'wolframalpha'

searx/engines/wolframalpha_api.py

 # search-url
 base_url = 'http://api.wolframalpha.com/v2/query'
 search_url = base_url + '?appid={api_key}&{query}&format=plaintext'
-site_url = 'http://wolframalpha.com/input/?{query}'
+api_key = ''
+
 
 # do search-request
 def request(query, params):
     params['url'] = search_url.format(query=urlencode({'input': query}),
                                       api_key=api_key)
 
-    # need this for url in response
-    global my_query
-    my_query = query
-
     return params
 
+
 # replace private user area characters to make text legible
 def replace_pua_chars(text):
-    pua_chars = { u'\uf74c': 'd',
-                  u'\uf74d': u'\u212f',
-                  u'\uf74e': 'i',
-                  u'\uf7d9': '=' }
+    pua_chars = {u'\uf74c': 'd',
+                 u'\uf74d': u'\u212f',
+                 u'\uf74e': 'i',
+                 u'\uf7d9': '='}
 
     for k, v in pua_chars.iteritems():
         text = text.replace(k, v)
 
     return text
 
+
 # get response from search-request
 def response(resp):
     results = []
     result = search_results.xpath('//pod[attribute::primary="true"]/subpod/plaintext')[0].text
     result = replace_pua_chars(result)
 
-    # bind url from site
-    result_url = site_url.format(query=urlencode({'i': my_query}))
-
     # append result
     # TODO: shouldn't it bind the source too?
-    results.append({'url': result_url,
-                    'answer': result})
+    results.append({'answer': result})
 
     # return results
     return results