Format code with ruff

Author: veeceey

httpx/_urls.py

@@ -119,7 +119,11 @@ def __init__(self, url: URL | str = "", **kwargs: typing.Any) -> None:
                 # Get existing query params from the URL
                 if isinstance(url, str):
                     parsed_url = urlparse(url)
-                    existing_params = QueryParams(parsed_url.query) if parsed_url.query else QueryParams()
+                    existing_params = (
+                        QueryParams(parsed_url.query)
+                        if parsed_url.query
+                        else QueryParams()
+                    )
                 elif isinstance(url, URL):
                     existing_params = url.params
                 else:

tests/models/test_url.py

@@ -871,7 +871,9 @@ def test_url_params_merge_with_existing_query():
     Regression test for issue #3621.
     """
     # URL with existing query params + additional params argument
-    url = httpx.URL("https://example.com/get?page=post&s=list", params={"pid": 0, "tags": "test"})
+    url = httpx.URL(
+        "https://example.com/get?page=post&s=list", params={"pid": 0, "tags": "test"}
+    )
 
     assert url.path == "/get"
     assert "page=post" in str(url)
@@ -889,7 +891,9 @@ def test_url_params_override_with_same_key():
     Test that when a URL has existing query params and new params with
     the same key are provided, the new params override the old ones.
     """
-    url = httpx.URL("https://example.com/get?a=old&b=keep", params={"a": "new", "c": "add"})
+    url = httpx.URL(
+        "https://example.com/get?a=old&b=keep", params={"a": "new", "c": "add"}
+    )
 
     params = dict(url.params)
     assert params["a"] == "new"  # Overridden