Merge pull request pandas-dev#8922 from aevri/refactor/move_import

CLN: move import to top of file

Author: jorisvandenbossche

pandas/core/config.py

@@ -51,6 +51,7 @@
 import re
 
 from collections import namedtuple
+from contextlib import contextmanager
 import warnings
 from pandas.compat import map, lmap, u
 import pandas.compat as compat
@@ -681,8 +682,6 @@ def pp(name, ks):
 #
 # helpers
 
-from contextlib import contextmanager
-
 
 @contextmanager
 def config_prefix(prefix):