Use ``namespace`` in ``PyLinter`` and the functional config tests (#6271)

* Use callback actions in ``PyLinter``
* Turn off ``optparse`` command line parsing
* No longer emit ``bad-configuration-section``

Co-authored-by: Pierre Sassoulas <pierre.sassoulas@gmail.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/pylint/config/option.py b/pylint/config/option.py
index d4732348c..1bc273377 100644
--- a/pylint/config/option.py
+++ b/pylint/config/option.py
@@ -74,14 +74,14 @@ def _multiple_choice_validator(choices, name, value):
     return values
 
 
-def _non_empty_string_validator(opt, _, value):
+def _non_empty_string_validator(opt, _, value):  # pragma: no cover # Unused
     if not value:
         msg = "indent string can't be empty."
         raise optparse.OptionValueError(msg)
     return utils._unquote(value)
 
 
-def _multiple_choices_validating_option(opt, name, value):
+def _multiple_choices_validating_option(opt, name, value):  # pragma: no cover # Unused
     return _multiple_choice_validator(opt.choices, name, value)
 
 
@@ -193,7 +193,7 @@ class Option(optparse.Option):
 
     optparse.Option.CHECK_METHODS[2] = _check_choice  # type: ignore[index]
 
-    def process(self, opt, value, values, parser):
+    def process(self, opt, value, values, parser):  # pragma: no cover # Argparse
         if self.callback and self.callback.__module__ == "pylint.lint.run":
             return 1
         # First, convert the value(s) to the right type.  Howl if any