pep8 blank lines fixes

flake8 --select W391,E302,E301,E304

autopep8 can't fix W391 even though it claims it can.
Fixed using a simple custom script.

weboob/core/modules.py

@@ -103,6 +103,7 @@ class ModulesLoader(object):
     """
     Load modules.
     """
+
     def __init__(self, path, version=None):
         self.version = version
         self.path = path
@@ -162,10 +163,12 @@ class ModulesLoader(object):
     def get_module_path(self, module_name):
         return self.path
 
+
 class RepositoryModulesLoader(ModulesLoader):
     """
     Load modules from repositories.
     """
+
     def __init__(self, repositories):
         super(RepositoryModulesLoader, self).__init__(repositories.modules_dir, repositories.version)
         self.repositories = repositories

weboob/core/ouiboube.py

@@ -111,6 +111,7 @@ class WebNip(object):
         :param backend_name: name of backend we can't load
         :param exception: exception object
         """
+
         def __init__(self, backend_name, exception):
             Exception.__init__(self, unicode(exception))
             self.backend_name = backend_name

weboob/core/repositories.py

@@ -45,6 +45,7 @@ class ModuleInfo(object):
     """
     Information about a module available on a repository.
     """
+
     def __init__(self, name):
         self.name = name
 
@@ -380,6 +381,7 @@ class IProgress(object):
     def __repr__(self):
         return '<%s>' % self.__class__.__name__
 
+
 class PrintProgress(IProgress):
     def progress(self, percent, message):
         print('=== [%3.0f%%] %s' % (percent*100, message))
@@ -450,6 +452,7 @@ class Repositories(object):
     def load_browser(self):
         from weboob.browser.browsers import Browser
         from weboob.browser.profiles import Weboob as WeboobProfile
+
         class WeboobBrowser(Browser):
             PROFILE = WeboobProfile(self.version)
         if self.browser is None: