diff -r d29955a6dbba -r fceae84a22dd cubicweb/server/test/data-schemaserial/site_cubicweb.py
--- a/cubicweb/server/test/data-schemaserial/site_cubicweb.py	Wed Dec 18 05:39:03 2019 +0100
+++ b/cubicweb/server/test/data-schemaserial/site_cubicweb.py	Thu Dec 19 15:13:10 2019 +0100
@@ -20,9 +20,11 @@
 from logilab.database.sqlite import register_sqlite_pyfunc
 from rql.utils import register_function
 
+
 class DUMB_SORT(FunctionDescr):
     pass
 
+
 register_function(DUMB_SORT)
 def dumb_sort(something):
     return something