Adjust format of table for accessibility

Author: kdaily

awscli/customizations/configure/list.py

@@ -51,17 +51,14 @@ class ConfigureListCommand(BasicCommand):
     )
 
     def __init__(self, session, stream=None):
-        super(ConfigureListCommand, self).__init__(session)
+        super().__init__(session)
         if stream is None:
             stream = sys.stdout
         self._stream = stream
 
     def _run_main(self, args, parsed_globals):
         self._display_config_value(
-            ConfigValue('Value', 'Type', 'Location'), 'Name'
-        )
-        self._display_config_value(
-            ConfigValue('-----', '----', '--------'), '----'
+            ConfigValue('VALUE', 'TYPE', 'LOCATION'), 'NAME'
         )
 
         if parsed_globals and parsed_globals.profile is not None:
@@ -80,13 +77,10 @@ def _run_main(self, args, parsed_globals):
 
     def _display_config_value(self, config_value, config_name):
         self._stream.write(
-            '%10s %24s %16s    %s\n'
-            % (
-                config_name,
-                config_value.value,
-                config_value.config_type,
-                config_value.config_variable,
-            )
+            f'{config_name:<10} : '
+            f'{config_value.value:<24} : '
+            f'{str(config_value.config_type):<16} : '
+            f'{str(config_value.config_variable)}\n'
         )
 
     def _lookup_credentials(self):

tests/functional/configure/test_configure.py

@@ -57,7 +57,7 @@ def test_list_command(self):
         stdout, _, _ = self.run_cmd("configure list")
         self.assertRegex(stdout, r"access_key.+config-file")
         self.assertRegex(stdout, r"secret_key.+config-file")
-        self.assertRegex(stdout, r"region\s+us-west-2\s+config-file")
+        self.assertRegex(stdout, r"region\s+:\sus-west-2\s+:\sconfig-file")
 
     def test_get_command(self):
         self.set_config_file_contents(