BUG: Fix formatting and style (39701)

Author: alexprincel

pandas/tests/util/test_show_versions.py

@@ -1,7 +1,6 @@
 import json
 import os
 import re
-from itertools import chain
 
 import pytest
 
@@ -75,9 +74,12 @@ def test_show_versions(capsys, as_json, tmpdir):
                 dict_check = json.loads(str_contents)
 
         # Basic check that each version element is found in output
-        version_elements = dict(system = _get_sys_info(), dependencies = _get_dependency_info())
+        version_elements = {
+            "system": _get_sys_info(),
+            "dependencies": _get_dependency_info(),
+        }
 
-        assert version_elements == dict_check 
+        assert version_elements == dict_check
 
 
 def test_json_output_match(capsys, tmpdir):