Fix for urlunparse in latest Python versions

docs/src/markdown/about/changelog.md

@@ -4,6 +4,7 @@
 
 -   **NEW**: MagicLink: Change social process to support `x` instead of `twitter`. `twitter` is still recognized but is
     now deprecated and will be removed at a future time.
+-   **FIX**: PathConverter: Fixes for latest changes in Python regarding `urlunparse`.
 
 ## 10.9
 

pymdownx/util.py

@@ -17,6 +17,7 @@
 from functools import wraps
 import warnings
 
+RE_WIN_DRIVE = re.compile(r'^[A-Za-z]:.*$')
 RE_WIN_DRIVE_LETTER = re.compile(r"^[A-Za-z]$")
 RE_WIN_DRIVE_PATH = re.compile(r"^[A-Za-z]:(?:\\.*)?$")
 RE_URL = re.compile('(http|ftp)s?|data|mailto|tel|news')
@@ -53,7 +54,10 @@ def is_mac():  # pragma: no cover
 def url2path(path):
     """Path to URL."""
 
-    return url2pathname(path)
+    path = url2pathname(path)
+    if is_win() and RE_WIN_DRIVE.match(path):
+        path = '/' + path
+    return path
 
 
 def path2url(url):

tests/test_extensions/test_pathconverter.py

@@ -341,9 +341,15 @@ def test_windows_root_conversion(self):
                 r'<p><img alt="picture" src="file:///C:/Some/fake/path/extensions/_assets/bg.png" /></p>'
             )
         else:
+            from urllib.parse import urlunparse
+
+            if urlunparse(('file', '', 'c:/test', '', '', '')) == 'file:c:/test':
+                result = r'<p><img alt="picture" src="file:C%3A/Some/fake/path/extensions/_assets/bg.png" /></p>'
+            else:
+                result = r'<p><img alt="picture" src="file:///C%3A/Some/fake/path/extensions/_assets/bg.png" /></p>'
             self.check_markdown(
                 r'![picture](./extensions/_assets/bg.png)',
-                r'<p><img alt="picture" src="file:///C%3A/Some/fake/path/extensions/_assets/bg.png" /></p>'
+                result
             )