pyflakes3

src/escpos/__init__.py

@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 """python-escpos enables you to manipulate escpos-printers."""
 
-__all__ = ["constants", "escpos", "exceptions", "printer"]
+__all__ = ["constants", "escpos", "exceptions", "printer", "__version__"]
 
 try:
     from .version import version as __version__  # noqa

src/escpos/config.py

@@ -4,7 +4,6 @@ This module contains the implementations of abstract base class :py:class:`Confi
 """
 import os
 import pathlib
-from typing import Optional
 
 import appdirs
 import yaml

src/escpos/katakana.py

@@ -11,7 +11,7 @@ except ImportError:
     jaconv = None
 
 
-def encode_katakana(text):
+def encode_katakana(text: str) -> bytes:
     """I don't think this quite works yet."""
     encoded = []
     for char in text: