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.

tools/make_man.py

@@ -2,6 +2,17 @@
 # -*- coding: utf-8 -*-
 from __future__ import print_function
 
+import imp
+import inspect
+import optparse
+import os
+import re
+import sys
+import tempfile
+import time
+
+from weboob.tools.application.base import Application
+
 # Copyright(C) 2010-2011 Laurent Bachelier
 #
 # This file is part of weboob.
@@ -19,16 +30,6 @@ from __future__ import print_function
 # You should have received a copy of the GNU Affero General Public License
 # along with weboob. If not, see <http://www.gnu.org/licenses/>.
 
-import sys
-import os
-import tempfile
-import imp
-import inspect
-import optparse
-import re
-import time
-
-from weboob.tools.application.base import Application
 
 BASE_PATH = os.path.join(os.path.dirname(__file__), os.pardir)
 DEST_DIR = 'man'
@@ -121,8 +122,8 @@ def main():
                 try:
                     script = imp.load_module("scripts.%s" % fname, f, tmpfile, desc)
                 except ImportError as e:
-                    print("Unable to load the %s script (%s)" \
-                        % (fname, e), file=sys.stderr)
+                    print("Unable to load the %s script (%s)"
+                          % (fname, e), file=sys.stderr)
                 else:
                     print("Loaded %s" % fname)
                     # Find the applications we can handle