reduce from 3 to 2 packages

src/nominatim_db/tools/special_phrases/sp_csv_loader.py

@@ -13,7 +13,7 @@ from typing import Iterable
 import csv
 import os
 
-from nominatim_core.errors import UsageError
+from ...errors import UsageError
 from .special_phrase import SpecialPhrase
 
 class SPCsvLoader:

src/nominatim_db/tools/special_phrases/sp_importer.py

@@ -19,9 +19,9 @@ import re
 
 from psycopg2.sql import Identifier, SQL
 
-from nominatim_core.typing import Protocol
-from nominatim_core.config import Configuration
-from nominatim_core.db.connection import Connection
+from ...typing import Protocol
+from ...config import Configuration
+from ...db.connection import Connection
 from .importer_statistics import SpecialPhrasesImporterStatistics
 from .special_phrase import SpecialPhrase
 from ...tokenizer.base import AbstractTokenizer

src/nominatim_db/tools/special_phrases/sp_wiki_loader.py

@@ -11,8 +11,8 @@ from typing import Iterable
 import re
 import logging
 
-from nominatim_core.config import Configuration
-from nominatim_core.utils.url_utils import get_url
+from ...config import Configuration
+from ...utils.url_utils import get_url
 from .special_phrase import SpecialPhrase
 
 LOG = logging.getLogger()