Move package's related commands to "package" sub-folder

tests/commands/test_lib_complex.py

@@ -335,17 +335,14 @@ def test_lib_stats(clirunner, validate_cliresult):
 
     result = clirunner.invoke(cmd_lib, ["stats", "--json-output"])
     validate_cliresult(result)
-    assert (
-        set(
-            [
-                "dlweek",
-                "added",
-                "updated",
-                "topkeywords",
-                "dlmonth",
-                "dlday",
-                "lastkeywords",
-            ]
-        )
-        == set(json.loads(result.output).keys())
-    )
+    assert set(
+        [
+            "dlweek",
+            "added",
+            "updated",
+            "topkeywords",
+            "dlmonth",
+            "dlday",
+            "lastkeywords",
+        ]
+    ) == set(json.loads(result.output).keys())