diff --git a/conda_build/cli/main_build.py b/conda_build/cli/main_build.py
index 267de15b09..73da5bdec6 100644
--- a/conda_build/cli/main_build.py
+++ b/conda_build/cli/main_build.py
@@ -15,7 +15,11 @@
 
 from .. import api, build, source, utils
 from ..conda_interface import add_parser_channels, binstar_upload, cc_conda_build
-from ..config import get_channel_urls, get_or_merge_config, zstd_compression_level_default
+from ..config import (
+    get_channel_urls,
+    get_or_merge_config,
+    zstd_compression_level_default,
+)
 from ..deprecations import deprecated
 from ..utils import LoggingContext
 from .actions import KeyValueAction
diff --git a/tests/cli/test_main_metapackage.py b/tests/cli/test_main_metapackage.py
index b11b4560eb..44ec145264 100644
--- a/tests/cli/test_main_metapackage.py
+++ b/tests/cli/test_main_metapackage.py
@@ -2,7 +2,6 @@
 # SPDX-License-Identifier: BSD-3-Clause
 import json
 import os
-import sys
 from glob import glob
 
 from conda_build.cli import main_metapackage
diff --git a/tests/cli/test_main_render.py b/tests/cli/test_main_render.py
index 9c423d1b43..10ed9f803e 100644
--- a/tests/cli/test_main_render.py
+++ b/tests/cli/test_main_render.py
@@ -66,7 +66,9 @@ def test_render_without_channel_fails(tmp_path):
     ), f"Expected to get only base package name because it should not be found, but got :{required_package_string}"
 
 
-def test_render_output_build_path(testing_workdir, testing_config, testing_metadata, capfd, caplog):
+def test_render_output_build_path(
+    testing_workdir, testing_config, testing_metadata, capfd, caplog
+):
     api.output_yaml(testing_metadata, "meta.yaml")
     args = ["--output", testing_workdir]
     main_render.execute(args)