PEP8 style fixes and other small style fixes

I used autopep8 on some files and did carefully check the changes.
I ignored E501,E302,E231,E225,E222,E221,E241,E203 in my search, and at
least E501 on any autopep8 run.

Other style fixes not related to PEP8:
* Only use new-style classes. I don't think the usage of old-style
  classes was voluntary. Old-style classes are removed in Python 3.
* Convert an if/else to a one-liner in mediawiki, change docstring style
  change to a comment something that wasn't really appropriate for a
  docstring.
* Unneeded first if condition in meteofrance

modules/societegenerale/pages/login.py

@@ -53,11 +53,11 @@ class LoginPage(BasePage):
         infos_xml = etree.XML(infos_data)
         infos = {}
         for el in ("cryptogramme", "nblignes", "nbcolonnes"):
-          infos[el] = infos_xml.find(el).text
+            infos[el] = infos_xml.find(el).text
 
         infos["grille"] = ""
         for g in infos_xml.findall("grille"):
-          infos["grille"] += g.text + ","
+            infos["grille"] += g.text + ","
         infos["keyCodes"] = infos["grille"].split(",")
 
         url = base_url + '/cvcsgenimage?modeClavier=0&cryptogramme=' + infos["cryptogramme"]
@@ -79,5 +79,6 @@ class LoginPage(BasePage):
         self.browser['cryptocvcs'] = infos["cryptogramme"]
         self.browser.submit()
 
+
 class BadLoginPage(BasePage):
     pass