diff --git a/tests/test_requests.py b/tests/test_requests.py
index 11ef8ab..97628f1 100644
--- a/tests/test_requests.py
+++ b/tests/test_requests.py
@@ -117,9 +117,11 @@ class TestRequestFactory(unittest.TestCase):
         request_url = f"{url}?{urlencode(parameters)}" if url else ""
         parsed = urlparse(request_url)
         tornado_request = HTTPServerRequest(
-            method="GET", uri=f"{parsed.path}?{parsed.query}")
+            method="GET",
+            uri=f"{parsed.path}?{parsed.query}",
+        )
         tornado_request.protocol = parsed.scheme
-        tornado_request.host = parsed.netloc.split(':')[0]
+        tornado_request.host = parsed.netloc.split(":")[0]
         expected = OpenAPIRequest(
             full_url_pattern=url,
             method="get",
diff --git a/tornado_openapi3/requests.py b/tornado_openapi3/requests.py
index c1e79fb..cfc564f 100644
--- a/tornado_openapi3/requests.py
+++ b/tornado_openapi3/requests.py
@@ -26,8 +26,8 @@ class TornadoRequestFactory:
                 query_arguments = ImmutableMultiDict()
         else:
             path, _, _ = request.full_url().partition("?")
-            if path == '://':
-                path = ''
+            if path == "://":
+                path = ""
             query_arguments = ImmutableMultiDict(
                 itertools.chain(
                     *[