Use open() instead of io.open()

refscrub/refscrub.py

@@ -26,7 +26,6 @@ Packaged with conda.
 import argparse
 import struct
 import sys
-from io import open
 from os.path import basename, getsize, isfile
 
 PROG_VERSION = '2020.216'

setup.py

@@ -3,7 +3,6 @@
 
 """The setup script."""
 
-from io import open
 from setuptools import setup, find_packages
 
 with open('README.rst', 'rt') as readme_file:

tests/test_refscrub.py

@@ -4,7 +4,6 @@
 """Tests for `refscrub` package."""
 
 import argparse
-import io
 import os
 import unittest
 
@@ -42,8 +41,8 @@ class TestRefscrub(unittest.TestCase):
         main()
         self.assertTrue(os.path.isfile('scrubsum.txt'), "Error! Summary file "
                         "not created.")
-        with io.open("scrubsum.txt", "rt") as f_out:
+        with open("scrubsum.txt", "rt") as f_out:
             out = f_out.readlines()
-        with io.open(TEST_SUMMARY, "rt") as f_test:
+        with open(TEST_SUMMARY, "rt") as f_test:
             test = f_test.readlines()
         self.assertEqual(out, test)