[enh] engine cfg compatibilty

1 files changed, 4 insertions, 6 deletions

diff --git a/searx/engines/stackoverflow.py b/searx/engines/stackoverflow.py
index 26310800e..ee1a72734 100644
--- a/searx/engines/stackoverflow.py
+++ b/searx/engines/stackoverflow.py
@@ -5,23 +5,21 @@ from urllib import urlencode
 
 categories = ['it']
 
-base_url = 'http://stackoverflow.com/'
-search_url = base_url+'search?'
+url = 'http://stackoverflow.com/'
+search_url = url+'search?'
 
 def request(query, params):
-    global search_url
     params['url'] = search_url + urlencode({'q': query})
     return params
 
 
 def response(resp):
-    global base_url
     results = []
     dom = html.fromstring(resp.text)
     for result in dom.xpath('//div[@class="question-summary search-result"]'):
         link = result.xpath('.//div[@class="result-link"]//a')[0]
-        url = urljoin(base_url, link.attrib.get('href'))
+        href = urljoin(url, link.attrib.get('href'))
         title = ' '.join(link.xpath('.//text()'))
         content = escape(' '.join(result.xpath('.//div[@class="excerpt"]//text()')))
-        results.append({'url': url, 'title': title, 'content': content})
+        results.append({'url': href, 'title': title, 'content': content})
     return results