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/cragr/pages/accounts_list.py

@@ -24,6 +24,7 @@ from weboob.capabilities.bank import Account
 from .base import CragrBasePage
 from weboob.capabilities.bank import Transaction
 
+
 def clean_amount(amount):
     """
         Removes weird characters and converts to a float
@@ -34,6 +35,7 @@ def clean_amount(amount):
     matches = re.findall('^(-?[0-9]+\.[0-9]{2}).*$', data)
     return float(matches[0]) if (matches) else 0.0
 
+
 class AccountsList(CragrBasePage):
 
     def get_list(self):
@@ -109,7 +111,7 @@ class AccountsList(CragrBasePage):
             select_name is the name of the select field to analyze
         """
         if not self.is_transfer_page():
-          return False
+            return False
         source_accounts = {}
         source_account_options = self.document.xpath('/html/body//form//select[@name="%s"]/option' % select_name)
         for option in source_account_options:
@@ -212,7 +214,7 @@ class AccountsList(CragrBasePage):
             year = today.year
         return date(year, month, day)
 
-    def get_history(self, start_index = 0, start_offset = 0):
+    def get_history(self, start_index=0, start_offset=0):
         """
             Returns the history of a specific account. Note that this function
             expects the current page to be the one dedicated to this history.