diff --git a/beancount_import/source/amazon.py b/beancount_import/source/amazon.py
index 703420ed..e8f801f3 100644
--- a/beancount_import/source/amazon.py
+++ b/beancount_import/source/amazon.py
@@ -560,7 +560,7 @@ def __init__(self,
         self.pickler = AmazonPickler(pickle_dir)
 
         self.earliest_date = earliest_date
-        self.locale = LOCALES[locale]()
+        self.locale = LOCALES[locale]
 
         self.invoice_filenames = []  # type: List[Tuple[str, str]]
         for filename in os.listdir(self.directory):
diff --git a/beancount_import/source/amazon_invoice.py b/beancount_import/source/amazon_invoice.py
index 8a597897..db1c6973 100644
--- a/beancount_import/source/amazon_invoice.py
+++ b/beancount_import/source/amazon_invoice.py
@@ -1,14 +1,13 @@
 """Parses an Amazon.com/.de regular or digital order details HTML file."""
 
-from typing import NamedTuple, Optional, List, Union, Iterable, Dict, Sequence, cast, Any
-import dataclasses
+from typing import NamedTuple, Optional, List, Union, Iterable, Dict, Sequence, cast
+from abc import ABC, abstractmethod
 import collections
 import re
 import os
 import functools
 import datetime
 import logging
-from abc import ABC, abstractmethod
 
 import bs4
 import dateutil.parser