Sort imports with isort

Keep imports alphabetically sorted and their order homogeneous across
Python source files.

The isort project has more feature and is more active than the
flake8-import-order plugin.

Most issues caught were simply import ordering from the same module.
Where imports were purposefully placed out of order, tag with
isort:skip.

1 files changed, 2 insertions, 5 deletions

diff --git a/sphinx/ext/jsmath.py b/sphinx/ext/jsmath.py
index 75369a5ca..1d4eb4826 100644
--- a/sphinx/ext/jsmath.py
+++ b/sphinx/ext/jsmath.py
@@ -12,11 +12,8 @@
 import warnings
 from typing import Any, Dict
 
-from sphinxcontrib.jsmath import (  # NOQA
-    html_visit_math,
-    html_visit_displaymath,
-    install_jsmath,
-)
+from sphinxcontrib.jsmath import (html_visit_displaymath, html_visit_math,  # NOQA
+                                  install_jsmath)
 
 import sphinx
 from sphinx.application import Sphinx