diff --git a/tests/integration/test_manylinux.py b/tests/integration/test_manylinux.py
index 45a73875..09d1c9a9 100644
--- a/tests/integration/test_manylinux.py
+++ b/tests/integration/test_manylinux.py
@@ -412,7 +412,10 @@ def test_build_wheel_with_binary_executable(
         #
         # Both executables should work when called from the installed bin directory.
         assert docker_exec(docker_python, ["/usr/local/bin/testprogram", "4"]) == "16\n"
-        assert docker_exec(docker_python, ["/usr/local/bin/testprogram_nodeps", "4"]) == "16\n"
+        assert (
+            docker_exec(docker_python, ["/usr/local/bin/testprogram_nodeps", "4"])
+            == "16\n"
+        )
 
         # testprogram should be a Python shim since we had to rewrite its RPATH.
         assert (
@@ -422,7 +425,9 @@ def test_build_wheel_with_binary_executable(
 
         # testprogram_nodeps should be the unmodified ELF binary.
         assert (
-            docker_exec(docker_python, ["head", "-c4", "/usr/local/bin/testprogram_nodeps"])
+            docker_exec(
+                docker_python, ["head", "-c4", "/usr/local/bin/testprogram_nodeps"]
+            )
             == "\x7fELF"
         )
 
diff --git a/tests/integration/testpackage/setup.py b/tests/integration/testpackage/setup.py
index 1702d598..a3e90d82 100644
--- a/tests/integration/testpackage/setup.py
+++ b/tests/integration/testpackage/setup.py
@@ -2,11 +2,21 @@
 
 import subprocess
 
-
 from setuptools import setup
 
-subprocess.check_call(("gcc", "testpackage/testprogram.c", "-lgsl", "-lgslcblas", "-o", "testpackage/testprogram"))
-subprocess.check_call(("gcc", "testpackage/testprogram_nodeps.c", "-o", "testpackage/testprogram_nodeps"))
+subprocess.check_call(
+    (
+        "gcc",
+        "testpackage/testprogram.c",
+        "-lgsl",
+        "-lgslcblas",
+        "-o",
+        "testpackage/testprogram",
+    )
+)
+subprocess.check_call(
+    ("gcc", "testpackage/testprogram_nodeps.c", "-o", "testpackage/testprogram_nodeps")
+)
 
 setup(
     name="testpackage",
@@ -19,5 +29,7 @@
     #
     # Note that using scripts=[] doesn't work here since setuptools expects the
     # scripts to be text and tries to decode them using UTF-8.
-    data_files=[("../scripts", ["testpackage/testprogram", "testpackage/testprogram_nodeps"])],
+    data_files=[
+        ("../scripts", ["testpackage/testprogram", "testpackage/testprogram_nodeps"])
+    ],
 )