diff --git a/pandas/_libs/__init__.py b/pandas/_libs/__init__.py
index af67cb3be7102..141ca0645b906 100644
--- a/pandas/_libs/__init__.py
+++ b/pandas/_libs/__init__.py
@@ -1,6 +1,15 @@
-# flake8: noqa
+__all__ = [
+    "NaT",
+    "NaTType",
+    "OutOfBoundsDatetime",
+    "Period",
+    "Timedelta",
+    "Timestamp",
+    "iNaT",
+]
 
-from .tslibs import (
+
+from pandas._libs.tslibs import (
     NaT,
     NaTType,
     OutOfBoundsDatetime,
diff --git a/pandas/_libs/reduction.pyx b/pandas/_libs/reduction.pyx
index 29a5a73ef08d0..9f8579606014a 100644
--- a/pandas/_libs/reduction.pyx
+++ b/pandas/_libs/reduction.pyx
@@ -1,5 +1,4 @@
 from copy import copy
-from distutils.version import LooseVersion
 
 from cython import Py_ssize_t
 from cpython.ref cimport Py_INCREF