Index: utils/lit/lit.py
===================================================================
--- utils/lit/lit.py
+++ utils/lit/lit.py
@@ -1,5 +1,6 @@
 #!/usr/bin/env python
 
+from lit.main import main
+
 if __name__=='__main__':
-    import lit
-    lit.main()
+    main()
Index: utils/lit/lit/LitConfig.py
===================================================================
--- utils/lit/lit/LitConfig.py
+++ utils/lit/lit/LitConfig.py
@@ -83,7 +83,7 @@
             # a timeout per test. Check it's available.
             # See lit.util.killProcessAndChildren()
             try:
-                import psutil
+                import psutil  # noqa: F401
             except ImportError:
                 self.fatal("Setting a timeout per test requires the"
                            " Python psutil module but it could not be"
Index: utils/lit/lit/__init__.py
===================================================================
--- utils/lit/lit/__init__.py
+++ utils/lit/lit/__init__.py
@@ -1,8 +1,5 @@
 """'lit' Testing Tool"""
 
-from __future__ import absolute_import
-from .main import main
-
 __author__ = 'Daniel Dunbar'
 __email__ = 'daniel@minormatter.com'
 __versioninfo__ = (0, 6, 0)
Index: utils/lit/lit/formats/__init__.py
===================================================================
--- utils/lit/lit/formats/__init__.py
+++ utils/lit/lit/formats/__init__.py
@@ -1,4 +1,8 @@
-from __future__ import absolute_import
-from lit.formats.base import TestFormat, FileBasedTest, OneCommandPerFileTest
-from lit.formats.googletest import GoogleTest
-from lit.formats.shtest import ShTest
+from lit.formats.base import (  # noqa: F401
+    TestFormat,
+    FileBasedTest,
+    OneCommandPerFileTest
+)
+
+from lit.formats.googletest import GoogleTest  # noqa: F401
+from lit.formats.shtest import ShTest  # noqa: F401