diff --git a/pyproject.toml b/pyproject.toml
index 1ee843de19..5d2f07be92 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -107,7 +107,7 @@ markers = [
 ]
 testpaths = [ "tests" ]
 addopts = [ "-ra", "--strict-config", "--strict-markers" ]
-filterwarnings = ["error"]
+filterwarnings = [ "error" ]
 xfail_strict = true
 
 [tool.towncrier]
diff --git a/src/pipx/standalone_python.py b/src/pipx/standalone_python.py
index a2750850de..895b3a3b03 100644
--- a/src/pipx/standalone_python.py
+++ b/src/pipx/standalone_python.py
@@ -119,7 +119,7 @@ def _unpack(full_version, download_link, archive: Path, download_dir: Path):
             )
 
         with tarfile.open(archive, mode="r:gz") as tar:
-            tar.extractall(download_dir, filter='data')
+            tar.extractall(download_dir, filter="data")
 
 
 def get_or_update_index(use_cache: bool = True):