diff --git a/chroot.py b/chroot.py
index 6487a84..ec0ef57 100644
--- a/chroot.py
+++ b/chroot.py
@@ -277,8 +277,10 @@ class Chroot:
         strict_cache_consistency: bool = False,
     ):
         """returns the absolute path `relative_target` was mounted at"""
+
         def log_or_exc(msg):
             log_or_exception(strict_cache_consistency, msg, log_level=logging.ERROR)
+
         relative_destination = relative_destination.lstrip('/')
         absolute_destination = self.get_path(relative_destination)
         pseudo_absolute = make_abs_path(relative_destination)
diff --git a/packages.py b/packages.py
index 2615c60..d7e45cc 100644
--- a/packages.py
+++ b/packages.py
@@ -420,7 +420,7 @@ def setup_build_chroot(
     return chroot
 
 
-def setup_sources(package: Package, chroot: Chroot, makepkg_conf_path = '/etc/makepkg.conf', pkgbuilds_dir: str = None):
+def setup_sources(package: Package, chroot: Chroot, makepkg_conf_path='/etc/makepkg.conf', pkgbuilds_dir: str = None):
     pkgbuilds_dir = pkgbuilds_dir if pkgbuilds_dir else CHROOT_PATHS['pkgbuilds']
     makepkg_setup_args = [
         '--config',