flake8: add extra blank lines

Author: rouilj

roundup/configuration.py

@@ -652,6 +652,7 @@ def str2value(self, value):
         except ValueError:
             raise OptionValueError(self, value, "Integer number required")
 
+
 class IntegerNumberGtZeroOption(Option):
 
     """Integer numbers greater than zero."""
@@ -668,6 +669,7 @@ def str2value(self, value):
         except ValueError:
             raise OptionValueError(self, value, "Integer number required")
 
+
 class OctalNumberOption(Option):
 
     """Octal Integer numbers"""