raise UsageError("Sanitizer rule is missing the 'step' attribute.")
module_name = 'nominatim.tokenizer.sanitizers.' + func['step'].replace('-', '_')
handler_module = importlib.import_module(module_name)
raise UsageError("Sanitizer rule is missing the 'step' attribute.")
module_name = 'nominatim.tokenizer.sanitizers.' + func['step'].replace('-', '_')
handler_module = importlib.import_module(module_name)