Easy spacing fixes, trailing stuff

Remove useless trailing \
Remove trailing spaces
Add missing empty lines

autopep8 -ir -j2 --select=E301,E302,E502,W291,W293,W391 .

Diff quickly checked.

weboob/core/bcall.py

@@ -43,13 +43,16 @@ class CallErrors(Exception):
     def __iter__(self):
         return self.errors.__iter__()
 
+
 class IResultsCondition(object):
     def is_valid(self, obj):
         raise NotImplementedError()
 
+
 class ResultsConditionError(Exception):
     pass
 
+
 class BackendsCall(object):
     def __init__(self, backends, condition, function, *args, **kwargs):
         """

weboob/core/modules.py

@@ -32,6 +32,7 @@ class ModuleLoadError(Exception):
         Exception.__init__(self, msg)
         self.module = module_name
 
+
 class Module(object):
     def __init__(self, package):
         self.logger = getLogger('backend')

weboob/core/scheduler.py

@@ -44,6 +44,7 @@ class IScheduler(object):
     def want_stop(self):
         raise NotImplementedError()
 
+
 class RepeatedTimer(_Timer):
     def run(self):
         while not self.finished.isSet():
@@ -55,6 +56,7 @@ class RepeatedTimer(_Timer):
             self.finished.wait(self.interval)
         self.finished.set()
 
+
 class Scheduler(IScheduler):
     def __init__(self):
         self.logger = getLogger('scheduler')