pep8 fixes, modernizations

autopep8 -a -r -i --select E711,E712,W601,W602,W603,W604,W690,E304,E401,E502 .
Also includes some manual reindentations (many are left after the print()
changes).
Manually checked, some modernizations not commited here.

modules/nolifetv/module.py

@@ -26,7 +26,8 @@ from weboob.tools.backend import Module, BackendConfig
 from .browser import NolifeTVBrowser
 from .video import NolifeTVVideo
 
-import urllib, time
+import urllib
+import time
 from hashlib import md5
 
 __all__ = ['NolifeTVModule']

modules/nolifetv/pages.py

@@ -69,7 +69,7 @@ class VideoPage(Page):
 
 class VideoListPage(Page):
     def is_list_empty(self):
-        return self.document.getroot() == None
+        return self.document.getroot() is None
 
     def iter_video(self, available_videos):
         for el in self.document.getroot().xpath('//li/a'):
@@ -101,7 +101,7 @@ class FamilyPage(Page):
 
             while True:
                 el = el.getnext()
-                if el == None or el.get('data-role'):
+                if el is None or el.get('data-role'):
                     break
                 h1 = el.find('.//h1')
                 id = h1.getparent().attrib['href']