diff --git a/scripts/change-link.py b/scripts/change-link.py
index e67b284..f063027 100755
--- a/scripts/change-link.py
+++ b/scripts/change-link.py
@@ -31,14 +31,9 @@ KEY = 'dotfiles'
 ENTRY = 'link'
 
 
-def main():
-    """entry point"""
-    args = docopt(USAGE)
-    path = os.path.expanduser(args['<config.yaml>'])
-    value = args['--value']
-    ignores = args['--ignore']
-
-    with open(path, 'r') as file:
+def change_link(path, value, ignores):
+    """change link value"""
+    with open(path, 'r', encoding='utf-8') as file:
         content = yaml(typ='safe').load(file)
     for k, val in content[KEY].items():
         if k in ignores:
@@ -54,5 +49,14 @@ def main():
     print(output)
 
 
+def main():
+    """entry point"""
+    args = docopt(USAGE)
+    path = os.path.expanduser(args['<config.yaml>'])
+    value = args['--value']
+    ignores = args['--ignore']
+    change_link(path, value, ignores)
+
+
 if __name__ == '__main__':
     main()
diff --git a/scripts/yaml-to-toml.py b/scripts/yaml-to-toml.py
index 7e7d918..604df87 100755
--- a/scripts/yaml-to-toml.py
+++ b/scripts/yaml-to-toml.py
@@ -1,5 +1,4 @@
 #!/usr/bin/env python3
-
 """
 author: deadc0de6 (https://github.com/deadc0de6)
 Copyright (c) 2022, deadc0de6
@@ -17,13 +16,13 @@ import toml
 def yaml_load(path):
     """load from yaml"""
     with open(path, 'r', encoding='utf8') as file:
-        data = yaml()
-        data.typ = 'rt'
-        content = data.load(file)
+        cont = yaml()
+        cont.typ = 'rt'
+        content = cont.load(file)
     return content
 
 
-def replace_None(content):
+def replace_none(content):
     """replace any occurence of None with empty string"""
     n = {}
     for k in content:
@@ -35,7 +34,7 @@ def replace_None(content):
             n[k] = ""
             continue
         if isinstance(content[k], dict):
-            n[k] = replace_None(content[k])
+            n[k] = replace_none(content[k])
             continue
         n[k] = content[k]
     return n
@@ -48,11 +47,10 @@ def toml_dump(content):
 
 if __name__ == '__main__':
     if len(sys.argv) < 2:
-        print("usage: {} <yaml-config-path>".format(sys.argv[0]))
+        print(f"usage: {sys.argv[0]} <yaml-config-path>")
         sys.exit(1)
 
-    path = sys.argv[1]
-    content = yaml_load(path)
-    content = replace_None(content)
-    out = toml_dump(content)
+    data = yaml_load(sys.argv[1])
+    data = replace_none(data)
+    out = toml_dump(data)
     print(out)
diff --git a/test-syntax.sh b/test-syntax.sh
index c62fd92..1e99e0b 100755
--- a/test-syntax.sh
+++ b/test-syntax.sh
@@ -28,6 +28,7 @@ pycodestyle scripts/
 echo "testing with pyflakes"
 pyflakes dotdrop/
 pyflakes tests/
+pyflakes scripts/
 
 # pylint
 echo "testing with pylint"
@@ -51,6 +52,19 @@ pylint \
   --disable=R0904 \
   dotdrop/
 
+# C0103: invalid-name
+pylint \
+  --disable=R0902 \
+  --disable=R0913 \
+  --disable=R0903 \
+  --disable=R0914 \
+  --disable=R0915 \
+  --disable=R0912 \
+  --disable=R0911 \
+  --disable=R0904 \
+  --disable=C0103 \
+  scripts/
+
 set +e
 exceptions="save_uservariables_name\|@@\|diff_cmd\|original,\|modified,"
 # f-string errors and missing f literal
diff --git a/tests/test_listings.py b/tests/test_listings.py
index 72a82e6..e568ad7 100644
--- a/tests/test_listings.py
+++ b/tests/test_listings.py
@@ -19,6 +19,7 @@ from tests.helpers import create_dir, get_string, get_tempdir, \
 
 
 class TestListings(unittest.TestCase):
+    """listing test"""
 
     CONFIG_BACKUP = False
     CONFIG_CREATE = True