diff --git a/bin/generate_schema.py b/bin/generate_schema.py
index 0ef4f0125..9b842b98a 100755
--- a/bin/generate_schema.py
+++ b/bin/generate_schema.py
@@ -271,7 +271,7 @@
 )
 
 for key, value in schema["properties"].items():
-    value["title"] = f'CIBW_{key.replace("-", "_").upper()}'
+    value["title"] = f"CIBW_{key.replace('-', '_').upper()}"
 
 non_global_options = {k: {"$ref": f"#/properties/{k}"} for k in schema["properties"]}
 del non_global_options["build"]
diff --git a/bin/projects.py b/bin/projects.py
index 09c5dc7f4..0278af5b3 100755
--- a/bin/projects.py
+++ b/bin/projects.py
@@ -95,8 +95,8 @@ def __lt__(self, other: Project) -> bool:
     def header(cls) -> str:
         return textwrap.dedent(
             f"""\
-                | {'Name':{cls.NAME}} | CI | OS | Notes |
-                |{'':-^{cls.NAME+2  }}|----|----|:------|"""
+                | {"Name":{cls.NAME}} | CI | OS | Notes |
+                |{"":-^{cls.NAME + 2}}|----|----|:------|"""
         )
 
     @property
@@ -219,7 +219,7 @@ def insert_projects_table(
 
     generated_note = f"<!-- this section is generated by bin/projects.py. Don't edit it directly, instead, edit {input_filename} -->"
     new_text = (
-        f"{text[:start + len(start_str)]}\n{generated_note}\n\n{projects_table}\n{text[end:]}"
+        f"{text[: start + len(start_str)]}\n{generated_note}\n\n{projects_table}\n{text[end:]}"
     )
 
     file.write_text(new_text)
diff --git a/cibuildwheel/linux.py b/cibuildwheel/linux.py
index 8c17a0908..83b6f8738 100644
--- a/cibuildwheel/linux.py
+++ b/cibuildwheel/linux.py
@@ -188,7 +188,7 @@ def build_in_container(
         log.step("Running before_all...")
 
         env = container.get_environment()
-        env["PATH"] = f'/opt/python/cp39-cp39/bin:{env["PATH"]}'
+        env["PATH"] = f"/opt/python/cp39-cp39/bin:{env['PATH']}"
         env["PIP_DISABLE_PIP_VERSION_CHECK"] = "1"
         env["PIP_ROOT_USER_ACTION"] = "ignore"
         env = before_all_options.environment.as_dictionary(
@@ -230,7 +230,7 @@ def build_in_container(
 
         # put this config's python top of the list
         python_bin = config.path / "bin"
-        env["PATH"] = f'{python_bin}:{env["PATH"]}'
+        env["PATH"] = f"{python_bin}:{env['PATH']}"
 
         env = build_options.environment.as_dictionary(env, executor=container.environment_executor)
 
diff --git a/cibuildwheel/macos.py b/cibuildwheel/macos.py
index fbef9bc43..2fae4df33 100644
--- a/cibuildwheel/macos.py
+++ b/cibuildwheel/macos.py
@@ -129,7 +129,7 @@ def get_python_configurations(
             log.quiet(
                 unwrap(
                     f"""
-                    Note: {ids}  {'was' if len(removed_elements) == 1 else 'were'}
+                    Note: {ids}  {"was" if len(removed_elements) == 1 else "were"}
                     selected, but can't be built on x86_64 so will be skipped automatically.
                     """
                 )
@@ -154,7 +154,7 @@ def install_cpython(_tmp: Path, version: str, url: str, free_threading: bool) ->
                         Error: CPython {version} is not installed.
                         cibuildwheel will not perform system-wide installs when running outside of CI.
                         To build locally, install CPython {version} on this machine, or, disable this
-                        version of Python using CIBW_SKIP=cp{version.replace('.', '')}-macosx_*
+                        version of Python using CIBW_SKIP=cp{version.replace(".", "")}-macosx_*
                         For portable builds, cibuildwheel needs the official builds from python.org.
                         Download link: {url}
                     """
@@ -229,9 +229,9 @@ def setup_python(
     else:
         msg = "Unknown Python implementation"
         raise ValueError(msg)
-    assert (
-        base_python.exists()
-    ), f"{base_python.name} not found, has {list(base_python.parent.iterdir())}"
+    assert base_python.exists(), (
+        f"{base_python.name} not found, has {list(base_python.parent.iterdir())}"
+    )
 
     log.step("Setting up build environment...")
     venv_path = tmp / "venv"
diff --git a/test/test_0_basic.py b/test/test_0_basic.py
index 6663b2da9..e39109083 100644
--- a/test/test_0_basic.py
+++ b/test/test_0_basic.py
@@ -64,9 +64,9 @@ def test_build_identifiers(tmp_path):
     build_identifiers = utils.cibuildwheel_get_build_identifiers(
         project_dir, prerelease_pythons=True
     )
-    assert len(expected_wheels) == len(
-        build_identifiers
-    ), f"{expected_wheels} vs {build_identifiers}"
+    assert len(expected_wheels) == len(build_identifiers), (
+        f"{expected_wheels} vs {build_identifiers}"
+    )
 
 
 @pytest.mark.parametrize(
diff --git a/test/test_from_sdist.py b/test/test_from_sdist.py
index 23f8b6b90..edb446ae9 100644
--- a/test/test_from_sdist.py
+++ b/test/test_from_sdist.py
@@ -77,7 +77,7 @@ def test_simple(tmp_path):
         assert os.path.exists('{package}/setup.py')
         """,
     )
-    setup_py_assertion_cmd = f'python -c "{setup_py_assertion_snippet !s}"'
+    setup_py_assertion_cmd = f'python -c "{setup_py_assertion_snippet!s}"'
 
     # build the wheels from sdist
     actual_wheels = cibuildwheel_from_sdist_run(
diff --git a/test/utils.py b/test/utils.py
index aa23638d6..2d9334e8b 100644
--- a/test/utils.py
+++ b/test/utils.py
@@ -295,12 +295,12 @@ def expected_wheels(
 
             if machine_arch == "arm64":
                 arm64_macosx = _floor_macosx(min_macosx, "11.0")
-                platform_tags = [f'macosx_{arm64_macosx.replace(".", "_")}_arm64']
+                platform_tags = [f"macosx_{arm64_macosx.replace('.', '_')}_arm64"]
             else:
-                platform_tags = [f'macosx_{min_macosx.replace(".", "_")}_x86_64']
+                platform_tags = [f"macosx_{min_macosx.replace('.', '_')}_x86_64"]
 
             if include_universal2:
-                platform_tags.append(f'macosx_{min_macosx.replace(".", "_")}_universal2')
+                platform_tags.append(f"macosx_{min_macosx.replace('.', '_')}_universal2")
         else:
             msg = f"Unsupported platform {platform!r}"
             raise Exception(msg)