raise minimum supported Python version to 3.9

.github/workflows/ci-tests.yml

@@ -119,7 +119,7 @@ jobs:
               if: matrix.dependencies == 'pip'
 
             - name: Python static typechecking
-              run: ../venv/bin/python -m mypy --strict --python-version 3.8 src
+              run: ../venv/bin/python -m mypy --strict --python-version 3.9 src
               working-directory: Nominatim
               if: matrix.dependencies == 'pip'
 

Makefile

@@ -18,7 +18,7 @@ build-api:
 tests: mypy lint pytest bdd
 
 mypy:
-	mypy --strict --python-version 3.8 src
+	mypy --strict --python-version 3.9 src
 
 pytest:
 	pytest test/python

docs/admin/Installation.md

@@ -27,7 +27,7 @@ For running Nominatim:
   * [PostgreSQL](https://www.postgresql.org) (12+ will work, 13+ strongly recommended)
   * [PostGIS](https://postgis.net) (3.0+ will work, 3.2+ strongly recommended)
   * [osm2pgsql](https://osm2pgsql.org) (1.8+)
-  * [Python 3](https://www.python.org/) (3.7+)
+  * [Python 3](https://www.python.org/) (3.9+)
 
 Furthermore the following Python libraries are required:
 

packaging/nominatim-api/pyproject.toml

@@ -2,7 +2,7 @@
 name = "nominatim-api"
 description = "A tool for building a database of OpenStreetMap for geocoding and for searching the database. Search library."
 readme = "README.md"
-requires-python = ">=3.7"
+requires-python = ">=3.9"
 license = 'GPL-3.0-or-later'
 maintainers = [
   { name = "Sarah Hoffmann", email = "lonvia@denofr.de" },

packaging/nominatim-db/pyproject.toml

@@ -2,7 +2,7 @@
 name = "nominatim-db"
 description = "A tool for building a database of OpenStreetMap for geocoding and for searching the database. Database backend."
 readme = "README.md"
-requires-python = ">=3.7"
+requires-python = ">=3.9"
 license = 'GPL-3.0-or-later'
 maintainers = [
   { name = "Sarah Hoffmann", email = "lonvia@denofr.de" },

src/nominatim_api/logging.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.
 """
 Functions for specialised logging with HTML output.
@@ -106,9 +106,6 @@ class BaseLogger:
                 except TypeError:
                     return sqlstr
 
-            # Fixes an odd issue with Python 3.7 where percentages are not
-            # quoted correctly.
-            sqlstr = re.sub(r'%(?!\()', '%%', sqlstr)
             sqlstr = re.sub(r'__\[POSTCOMPILE_([^]]*)\]', r'%(\1)s', sqlstr)
             return sqlstr % params