--- contrib/python/iniconfig/iniconfig/__init__.py	(index)
+++ contrib/python/iniconfig/iniconfig/__init__.py	(working tree)
@@ -114,8 +114,16 @@ class IniConfig:
         else:
             # Parse the data (backward compatible path)
             if data is None:
-                with open(self.path, encoding=encoding) as fp:
-                    data = fp.read()
+                if os.path.basename(self.path).startswith('pkg:'):
+                    import pkgutil
+
+                    basename = os.path.basename(self.path)
+                    _, package, resource = basename.split(':')
+                    content = pkgutil.get_data(package, resource)
+                    data = content.decode('utf-8')
+                else:
+                    with open(self.path, encoding=encoding) as fp:
+                        data = fp.read()
 
             # Use old behavior (no stripping) for backward compatibility
             sections_data, sources = _parse.parse_ini_data(