Address weird Windows path parsing

fiona/_path.py

@@ -65,7 +65,13 @@ class _ParsedPath(_Path):
     @classmethod
     def from_uri(cls, uri):
         parts = urlparse(uri)
-        path = pathlib.Path(parts.path).as_posix() if parts.path else parts.path
+        if sys.platform == "win32" and re.match(r"^[a-zA-Z]\:", parts.netloc) and not parts.path:
+            parsed_path = parts.netloc
+            parsed_netloc = None
+        else:
+            parsed_path = parts.path
+            parsed_netloc = parts.netloc
+        path = pathlib.Path(parsed_path).as_posix() if parsed_path else parsed_path
         scheme = parts.scheme or None
 
         if parts.query:
@@ -78,11 +84,11 @@ def from_uri(cls, uri):
         else:
             archive = None
 
-        if parts.scheme and parts.netloc:
+        if scheme and parsed_netloc:
             if archive:
-                archive = parts.netloc + archive
+                archive = parsed_netloc + archive
             else:
-                path = parts.netloc + path
+                path = parsed_netloc + path
 
         return _ParsedPath(path, archive, scheme)
 

tests/test__path.py

@@ -0,0 +1,13 @@
+"""_path tests."""
+
+import sys
+
+from fiona._path import _parse_path, _vsi_path
+
+
+def test_parse_zip_windows(monkeypatch):
+    """Parse a zip+ Windows path."""
+    monkeypatch.setattr(sys, "platform", "win32")
+    path = _parse_path("zip://D:\\a\\Fiona\\Fiona\\tests\\data\\coutwildrnp.zip!coutwildrnp.shp")
+    vsi_path = _vsi_path(path)
+    assert vsi_path == "/vsizip/D:\\a\\Fiona\\Fiona\\tests\\data\\coutwildrnp.zip/coutwildrnp.shp"