import zoneinfo in function scope

Author: nakagami

firebirdsql/tz_utils.py

@@ -26,10 +26,10 @@
 # Python DB-API 2.0 module for Firebird.
 ##############################################################################
 from firebirdsql.tz_map import timezone_name_by_id, timezone_id_by_name
-import zoneinfo
 
 
 def get_tzinfo_by_name(name):
+    import zoneinfo
     return zoneinfo.ZoneInfo(name)