diff --git a/blender_asset_tracer/pack/__init__.py b/blender_asset_tracer/pack/__init__.py
index d187ec9..1f72e5a 100644
--- a/blender_asset_tracer/pack/__init__.py
+++ b/blender_asset_tracer/pack/__init__.py
@@ -66,8 +66,8 @@ class Packer:
             log.warning('Running in no-op mode, only showing what will be done.')
 
         # Filled by strategise()
-        self._actions = collections.defaultdict(
-            AssetAction)  # type: typing.DefaultDict[pathlib.Path, AssetAction]
+        self._actions = collections.defaultdict(AssetAction) \
+            # type: typing.DefaultDict[pathlib.Path, AssetAction]
 
         # Number of files we would copy, if not for --noop
         self._file_count = 0
@@ -75,12 +75,6 @@ class Packer:
         self._tmpdir = tempfile.TemporaryDirectory(suffix='-batpack')
         self._rewrite_in = pathlib.Path(self._tmpdir.name)
 
-    def __enter__(self):
-        return self
-
-    def __exit__(self, exc_type, exc_val, exc_tb):
-        self.close()
-
     def close(self):
         """Clean up any temporary files."""
         self._tmpdir.cleanup()