diff --git a/lib/python/qmk/cli/config.py b/lib/python/qmk/cli/config.py
index d6c774e651..c4ee20cba5 100644
--- a/lib/python/qmk/cli/config.py
+++ b/lib/python/qmk/cli/config.py
@@ -12,7 +12,7 @@ def print_config(section, key):
     cli.echo('%s.%s{fg_cyan}={fg_reset}%s', section, key, cli.config[section][key])
 
 
-@cli.argument('-ro', '--read-only', action='store_true', help='Operate in read-only mode.')
+@cli.argument('-ro', '--read-only', arg_only=True, action='store_true', help='Operate in read-only mode.')
 @cli.argument('configs', nargs='*', arg_only=True, help='Configuration options to read or write.')
 @cli.subcommand("Read and write configuration settings.")
 def config(cli):
diff --git a/lib/python/qmk/cli/list/keyboards.py b/lib/python/qmk/cli/list/keyboards.py
index 53a7af75c6..2a29ccb146 100644
--- a/lib/python/qmk/cli/list/keyboards.py
+++ b/lib/python/qmk/cli/list/keyboards.py
@@ -6,6 +6,7 @@ import glob
 
 from milc import cli
 
+
 @cli.subcommand("List the keyboards currently defined within QMK")
 def list_keyboards(cli):
     """List the keyboards currently defined within QMK
diff --git a/lib/python/qmk/errors.py b/lib/python/qmk/errors.py
index f9bf5b9af9..4a8a91556b 100644
--- a/lib/python/qmk/errors.py
+++ b/lib/python/qmk/errors.py
@@ -1,6 +1,5 @@
 class NoSuchKeyboardError(Exception):
     """Raised when we can't find a keyboard/keymap directory.
     """
-
     def __init__(self, message):
         self.message = message
diff --git a/lib/python/qmk/tests/attrdict.py b/lib/python/qmk/tests/attrdict.py
index 391c75c4e1..a2584b9233 100644
--- a/lib/python/qmk/tests/attrdict.py
+++ b/lib/python/qmk/tests/attrdict.py
@@ -3,7 +3,6 @@ class AttrDict(dict):
 
     This should only be used to mock objects for unit testing. Please do not use this outside of qmk.tests.
     """
-
     def __init__(self, *args, **kwargs):
         super(AttrDict, self).__init__(*args, **kwargs)
         self.__dict__ = self
diff --git a/lib/python/qmk/tests/test_cli_commands.py b/lib/python/qmk/tests/test_cli_commands.py
index 9a9dc4b958..55b8d253f7 100644
--- a/lib/python/qmk/tests/test_cli_commands.py
+++ b/lib/python/qmk/tests/test_cli_commands.py
@@ -7,7 +7,7 @@ def check_subcommand(command, *args):
 
 
 def test_cformat():
-    assert check_subcommand('cformat', 'tmk_core/common/backlight.c').returncode == 0
+    assert check_subcommand('cformat', 'tmk_core/common/keyboard.c').returncode == 0
 
 
 def test_compile():
diff --git a/lib/python/qmk/tests/test_qmk_path.py b/lib/python/qmk/tests/test_qmk_path.py
index 94dbf3a6a6..d6961a0f65 100644
--- a/lib/python/qmk/tests/test_qmk_path.py
+++ b/lib/python/qmk/tests/test_qmk_path.py
@@ -10,4 +10,4 @@ def test_keymap_onekey_pytest():
 
 def test_normpath():
     path = qmk.path.normpath('lib/python')
-    assert path == os.environ['ORIG_CWD'] + '/lib/python'
+    assert path == os.path.join(os.environ['ORIG_CWD'], 'lib/python')