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, 6 insertions, 8 deletions

diff --git a/tests/test_domain_py.py b/tests/test_domain_py.py
index d81b406c2..2dc97bed9 100644
--- a/tests/test_domain_py.py
+++ b/tests/test_domain_py.py
@@ -15,15 +15,13 @@ import pytest
 from docutils import nodes
 
 from sphinx import addnodes
-from sphinx.addnodes import (
-    desc, desc_addname, desc_annotation, desc_content, desc_name, desc_optional,
-    desc_parameter, desc_parameterlist, desc_returns, desc_signature,
-    desc_sig_name, desc_sig_operator, desc_sig_punctuation, pending_xref,
-)
+from sphinx.addnodes import (desc, desc_addname, desc_annotation, desc_content, desc_name,
+                             desc_optional, desc_parameter, desc_parameterlist, desc_returns,
+                             desc_sig_name, desc_sig_operator, desc_sig_punctuation,
+                             desc_signature, pending_xref)
 from sphinx.domains import IndexEntry
-from sphinx.domains.python import (
-    py_sig_re, _parse_annotation, _pseudo_parse_arglist, PythonDomain, PythonModuleIndex
-)
+from sphinx.domains.python import (PythonDomain, PythonModuleIndex, _parse_annotation,
+                                   _pseudo_parse_arglist, py_sig_re)
 from sphinx.testing import restructuredtext
 from sphinx.testing.util import assert_node