diff --git a/searx/engines/bing_news.py b/searx/engines/bing_news.py
index 5dce4a2b..3dda04cb 100644
--- a/searx/engines/bing_news.py
+++ b/searx/engines/bing_news.py
@@ -57,12 +57,16 @@ def response(resp):
         link = result.xpath('.//div[@class="newstitle"]/a')[0]
         url = link.attrib.get('href')
         title = ' '.join(link.xpath('.//text()'))
-        contentXPath = result.xpath('.//div[@class="sn_txt"]/div//span[@class="sn_snip"]//text()')
+        contentXPath = result.xpath('.//div[@class="sn_txt"]/div'
+                                    '//span[@class="sn_snip"]//text()')
         if contentXPath is not None:
             content = escape(' '.join(contentXPath))
 
         # parse publishedDate
-        publishedDateXPath = result.xpath('.//div[@class="sn_txt"]/div//span[contains(@class,"sn_ST")]//span[contains(@class,"sn_tm")]//text()')
+        publishedDateXPath = result.xpath('.//div[@class="sn_txt"]/div'
+                                          '//span[contains(@class,"sn_ST")]'
+                                          '//span[contains(@class,"sn_tm")]'
+                                          '//text()')
         if publishedDateXPath is not None:
             publishedDate = escape(' '.join(publishedDateXPath))
 
@@ -74,7 +78,8 @@ def response(resp):
             timeNumbers = re.findall(r'\d+', publishedDate)
             publishedDate = datetime.now()\
                 - timedelta(hours=int(timeNumbers[0]))
-        elif re.match("^[0-9]+ hour(s|), [0-9]+ minute(s|) ago$", publishedDate):
+        elif re.match("^[0-9]+ hour(s|),"
+                      " [0-9]+ minute(s|) ago$", publishedDate):
             timeNumbers = re.findall(r'\d+', publishedDate)
             publishedDate = datetime.now()\
                 - timedelta(hours=int(timeNumbers[0]))\
diff --git a/searx/engines/faroo.py b/searx/engines/faroo.py
index dada4758..5360ea15 100644
--- a/searx/engines/faroo.py
+++ b/searx/engines/faroo.py
@@ -22,10 +22,17 @@ api_key = None
 
 # search-url
 url = 'http://www.faroo.com/'
-search_url = url + 'api?{query}&start={offset}&length={number_of_results}&l={language}&src={categorie}&i=false&f=json&key={api_key}'
+search_url = url + 'api?{query}'\
+                      '&start={offset}'\
+                      '&length={number_of_results}'\
+                      '&l={language}'\
+                      '&src={categorie}'\
+                      '&i=false'\
+                      '&f=json'\
+                      '&key={api_key}'  # noqa
 
 search_category = {'general': 'web',
-                'news': 'news'}
+                   'news': 'news'}
 
 
 # do search-request
@@ -80,8 +87,8 @@ def response(resp):
     # parse results
     for result in search_res['results']:
         if result['news']:
-            # timestamp (how many milliseconds have passed between now and the beginning of 1970)
-            publishedDate = datetime.datetime.fromtimestamp(result['date']/1000.0)
+            # timestamp (milliseconds since 1970)
+            publishedDate = datetime.datetime.fromtimestamp(result['date']/1000.0)  # noqa
 
             # append news result
             results.append({'url': result['url'],
diff --git a/searx/engines/google_images.py b/searx/engines/google_images.py
index 491f5c2c..79fac3fb 100644
--- a/searx/engines/google_images.py
+++ b/searx/engines/google_images.py
@@ -9,7 +9,7 @@
 # @stable      yes (but deprecated)
 # @parse       url, title, img_src
 
-from urllib import urlencode,unquote
+from urllib import urlencode, unquote
 from json import loads
 
 # engine dependent config
diff --git a/searx/engines/kickass.py b/searx/engines/kickass.py
index de732414..f1fcd9e1 100644
--- a/searx/engines/kickass.py
+++ b/searx/engines/kickass.py
@@ -1,8 +1,8 @@
 ## Kickass Torrent (Videos, Music, Files)
-# 
+#
 # @website     https://kickass.so
 # @provide-api no (nothing found)
-# 
+#
 # @using-api   no
 # @results     HTML (using search portal)
 # @stable      yes (HTML can change)
@@ -13,7 +13,6 @@ from cgi import escape
 from urllib import quote
 from lxml import html
 from operator import itemgetter
-from dateutil import parser
 
 # engine dependent config
 categories = ['videos', 'music', 'files']
@@ -33,7 +32,8 @@ def request(query, params):
     params['url'] = search_url.format(search_term=quote(query),
                                       pageno=params['pageno'])
 
-    # FIX: SSLError: hostname 'kickass.so' doesn't match either of '*.kickass.to', 'kickass.to'
+    # FIX: SSLError: hostname 'kickass.so'
+    # doesn't match either of '*.kickass.to', 'kickass.to'
     params['verify'] = False
 
     return params
diff --git a/searx/engines/soundcloud.py b/searx/engines/soundcloud.py
index 390e7ca1..164a569a 100644
--- a/searx/engines/soundcloud.py
+++ b/searx/engines/soundcloud.py
@@ -20,7 +20,12 @@ guest_client_id = 'b45b1aa10f1ac2941910a7f0d10f8e28'
 
 # search-url
 url = 'https://api.soundcloud.com/'
-search_url = url + 'search?{query}&facet=model&limit=20&offset={offset}&linked_partitioning=1&client_id={client_id}'
+search_url = url + 'search?{query}'\
+                         '&facet=model'\
+                         '&limit=20'\
+                         '&offset={offset}'\
+                         '&linked_partitioning=1'\
+                         '&client_id={client_id}'   # noqa
 
 
 # do search-request
diff --git a/searx/engines/yahoo.py b/searx/engines/yahoo.py
index 938540ec..c6c5b0d0 100644
--- a/searx/engines/yahoo.py
+++ b/searx/engines/yahoo.py
@@ -20,7 +20,8 @@ paging = True
 language_support = True
 
 # search-url
-search_url = 'https://search.yahoo.com/search?{query}&b={offset}&fl=1&vl=lang_{lang}'
+base_url = 'https://search.yahoo.com/'
+search_url = 'search?{query}&b={offset}&fl=1&vl=lang_{lang}'
 
 # specific xpath variables
 results_xpath = '//div[@class="res"]'
@@ -57,9 +58,9 @@ def request(query, params):
     else:
         language = params['language'].split('_')[0]
 
-    params['url'] = search_url.format(offset=offset,
-                                      query=urlencode({'p': query}),
-                                      lang=language)
+    params['url'] = base_url + search_url.format(offset=offset,
+                                                 query=urlencode({'p': query}),
+                                                 lang=language)
 
     # TODO required?
     params['cookies']['sB'] = 'fl=1&vl=lang_{lang}&sh=1&rw=new&v=1'\