diff --git a/build-scripts/generate-bom.py b/build-scripts/generate-bom.py
index 49e607f82..8b30b209b 100755
--- a/build-scripts/generate-bom.py
+++ b/build-scripts/generate-bom.py
@@ -12,8 +12,12 @@
 SNAPCRAFT_PART_BUILD = Path(os.getenv("SNAPCRAFT_PART_BUILD", ""))
 SNAPCRAFT_PART_INSTALL = Path(os.getenv("SNAPCRAFT_PART_INSTALL", ""))
 
-BUILD_DIRECTORY = SNAPCRAFT_PART_BUILD.exists() and SNAPCRAFT_PART_BUILD or DIR / ".build"
-INSTALL_DIRECTORY = SNAPCRAFT_PART_INSTALL.exists() and SNAPCRAFT_PART_INSTALL or DIR / ".install"
+BUILD_DIRECTORY = (
+    SNAPCRAFT_PART_BUILD.exists() and SNAPCRAFT_PART_BUILD or DIR / ".build"
+)
+INSTALL_DIRECTORY = (
+    SNAPCRAFT_PART_INSTALL.exists() and SNAPCRAFT_PART_INSTALL or DIR / ".install"
+)
 
 # List of tools used to build or bundled in the snap
 TOOLS = {
@@ -51,11 +55,15 @@ def _read_file(path: Path) -> str:
         component_dir = DIR / "components" / component
 
         try:
-            version = _read_file([component_dir / "version"])
-            patches = _parse_output([sys.executable, DIR / "print-patches-for.py", component, version])
+            version = _read_file(component_dir / "version")
+            patches = _parse_output(
+                [sys.executable, DIR / "print-patches-for.py", component, version]
+            )
             clean_patches = []
             if patches:
-                clean_patches = [p[p.find("build-scripts/") :] for p in patches.split("\n")]
+                clean_patches = [
+                    p[p.find("build-scripts/") :] for p in patches.split("\n")
+                ]
 
             BOM["components"][component] = {
                 "repository": _read_file(component_dir / "repository"),