Code formatting (flake8-valid)

doc/conf.py

 # -*- coding: utf-8 -*-
+# flake8: noqa
 #
 # Documentation build configuration file
 #

doc/manifest.py

@@ -18,6 +18,7 @@
 #    along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #
 ###############################################################################
+
 import ast
 
 
@@ -28,5 +29,6 @@
     with open('manifest', 'w') as out:
         out.write(d['description'])
 
+
 if __name__ == "__main__":
     main()
@@ -31,3 +33,2 @@
 if __name__ == "__main__":
     main()
-