Changed code to support older Python versions

venv/lib/python3.11/site-packages/mdurl/_format.py

@@ -0,0 +1,27 @@
+from __future__ import annotations
+
+from typing import TYPE_CHECKING
+
+if TYPE_CHECKING:
+    from mdurl._url import URL
+
+
+def format(url: URL) -> str:  # noqa: A001
+    result = ""
+
+    result += url.protocol or ""
+    result += "//" if url.slashes else ""
+    result += url.auth + "@" if url.auth else ""
+
+    if url.hostname and ":" in url.hostname:
+        # ipv6 address
+        result += "[" + url.hostname + "]"
+    else:
+        result += url.hostname or ""
+
+    result += ":" + url.port if url.port else ""
+    result += url.pathname or ""
+    result += url.search or ""
+    result += url.hash or ""
+
+    return result