fix linting issues

nominatim/tokenizer/sanitizers/clean_housenumbers.py

@@ -37,7 +37,8 @@ class _HousenumberSanitizer:
         new_address = []
         for item in obj.address:
             if self.filter_kind(item):
-                new_address.extend(item.clone(kind='housenumber', name=n) for n in self.sanitize(item.name))
+                new_address.extend(item.clone(kind='housenumber', name=n)
+                                   for n in self.sanitize(item.name))
             else:
                 # Don't touch other address items.
                 new_address.append(item)
@@ -56,7 +57,8 @@ class _HousenumberSanitizer:
                 yield from self._regularize(hnr)
 
 
-    def _regularize(self, hnr):
+    @staticmethod
+    def _regularize(hnr):
         yield hnr
 
 

nominatim/tokenizer/sanitizers/split_name_list.py

@@ -11,7 +11,6 @@ Arguments:
     delimiters: Define the set of characters to be used for
                 splitting the list. (default: ',;')
 """
-from nominatim.errors import UsageError
 from nominatim.tokenizer.sanitizers.helpers import create_split_regex
 
 def create(func):

nominatim/tokenizer/sanitizers/tag_analyzer_by_language.py

@@ -30,8 +30,6 @@ Arguments:
           any analyzer tagged) is retained. (default: replace)
 
 """
-import re
-
 from nominatim.tools import country_info
 from nominatim.tokenizer.sanitizers.helpers import create_kind_filter