fix #30: enforce utf-8 encoding

since windows used non-utf8-encoding

extract_otp_secret_keys.py

@@ -305,7 +305,7 @@ def open_file_or_stdout(filename):
     '''stdout is denoted as "-".
     Note: Set before the following line:
     sys.stdout.close = lambda: None'''
-    return open(filename, "w") if filename != '-' else sys.stdout
+    return open(filename, "w", encoding='utf-8') if filename != '-' else sys.stdout
 
 
 def open_file_or_stdout_for_csv(filename):
@@ -313,7 +313,7 @@ def open_file_or_stdout_for_csv(filename):
     newline=''
     Note: Set before the following line:
     sys.stdout.close = lambda: None'''
-    return open(filename, "w", newline='') if filename != '-' else sys.stdout
+    return open(filename, "w", encoding='utf-8', newline='') if filename != '-' else sys.stdout
 
 
 def eprint(*args, **kwargs):

test_extract_otp_secret_keys_pytest.py

@@ -270,7 +270,7 @@ Type:    totp
     assert captured.out == expected_stdout
     assert captured.err == ''
 
-@mark.skipif(platform.startswith("win"), reason="This test is not supported on Windows.")
+
 def test_extract_printqr(capsys):
     # Act
     extract_otp_secret_keys.main(['-p', 'example_export.txt'])

test_extract_otp_secret_keys_unittest.py

@@ -140,7 +140,6 @@ Type:    totp
         self.assertEqual(actual_output, expected_output)
 
     def test_extract_printqr(self):
-        if platform.startswith("win"): self.skipTest("This test is not supported on Windows.")
         out = io.StringIO()
         with redirect_stdout(out):
             extract_otp_secret_keys.main(['-p', 'example_export.txt'])

utils.py

@@ -59,7 +59,7 @@ def remove_dir_with_files(dir):
 
 def read_csv(filename):
     """Returns a list of lines."""
-    with open(filename, "r", newline='') as infile:
+    with open(filename, "r", encoding="utf-8", newline='') as infile:
         lines = []
         reader = csv.reader(infile)
         for line in reader:
@@ -78,7 +78,7 @@ def read_csv_str(str):
 
 def read_json(filename):
     """Returns a list or a dictionary."""
-    with open(filename, "r") as infile:
+    with open(filename, "r", encoding="utf-8") as infile:
         return json.load(infile)
 
 
@@ -89,7 +89,7 @@ def read_json_str(str):
 
 def read_file_to_list(filename):
     """Returns a list of lines."""
-    with open(filename, "r") as infile:
+    with open(filename, "r", encoding="utf-8") as infile:
         return infile.readlines()