Fix path is None case

.pyspelling.yml

@@ -44,8 +44,9 @@ matrix:
       - title
       - alt
       ignores:
-      - ':is(code, pre, a.magiclink, span.keys)'
-      - ':is(.MathJax_Preview, .md-nav__link, .md-footer-custom-text, .md-source__repository, .headerlink, .md-icon)'
+      - 'code, pre, a.magiclink, span.keys'
+      - '.MathJax_Preview, .md-nav__link, .md-footer-custom-text, .md-source__repository, .headerlink, .md-icon'
+      - '.md-footer-social__link'
   - pyspelling.filters.url:
 
 - name: markdown

ApplySyntax.py

@@ -445,6 +445,9 @@ def set_syntax(self, name):
             names = name
 
         for n in names:
+            if not n:
+                continue
+
             path = os.path.dirname(n)
             if not path:
                 continue

CHANGES.md

@@ -1,5 +1,9 @@
 # ApplySyntax
 
+## 3.0.1
+
+- **FIX**: Avoid evaluating path if it is None.
+
 ## 3.0.0
 
 - **NEW**: Remove deprecations.

support.py

@@ -5,7 +5,7 @@
 import webbrowser
 import re
 
-__version__ = "3.0.0"
+__version__ = "3.0.1"
 __pc_name__ = 'ApplySyntax'
 
 CSS = '''