enable flake for Python tests

test/python/tools/test_refresh_create_functions.py

@@ -2,7 +2,7 @@
 #
 # This file is part of Nominatim. (https://nominatim.org)
 #
-# Copyright (C) 2024 by the Nominatim developer community.
+# Copyright (C) 2025 by the Nominatim developer community.
 # For a full list of authors see the git log.
 """
 Tests for creating PL/pgSQL functions for Nominatim.
@@ -11,6 +11,7 @@ import pytest
 
 from nominatim_db.tools.refresh import create_functions
 
+
 class TestCreateFunctions:
     @pytest.fixture(autouse=True)
     def init_env(self, sql_preprocessor, temp_db_conn, def_config, tmp_path):
@@ -18,12 +19,10 @@ class TestCreateFunctions:
         self.config = def_config
         def_config.lib_dir.sql = tmp_path
 
-
     def write_functions(self, content):
         sqlfile = self.config.lib_dir.sql / 'functions.sql'
         sqlfile.write_text(content)
 
-
     def test_create_functions(self, temp_db_cursor):
         self.write_functions("""CREATE OR REPLACE FUNCTION test() RETURNS INTEGER
                               AS $$
@@ -37,7 +36,6 @@ class TestCreateFunctions:
 
         assert temp_db_cursor.scalar('SELECT test()') == 43
 
-
     @pytest.mark.parametrize("dbg,ret", ((True, 43), (False, 22)))
     def test_create_functions_with_template(self, temp_db_cursor, dbg, ret):
         self.write_functions("""CREATE OR REPLACE FUNCTION test() RETURNS INTEGER