Use argparse config handler on three checkers

pylint/checkers/base/docstring_checker.py

@@ -115,12 +115,12 @@ def visit_module(self, node: nodes.Module) -> None:
 
     @utils.check_messages("missing-docstring", "empty-docstring")
     def visit_classdef(self, node: nodes.ClassDef) -> None:
-        if self.config.no_docstring_rgx.match(node.name) is None:
+        if self.linter.namespace.no_docstring_rgx.match(node.name) is None:
             self._check_docstring("class", node)
 
     @utils.check_messages("missing-docstring", "empty-docstring")
     def visit_functiondef(self, node: nodes.FunctionDef) -> None:
-        if self.config.no_docstring_rgx.match(node.name) is None:
+        if self.linter.namespace.no_docstring_rgx.match(node.name) is None:
             ftype = "method" if node.is_method() else "function"
             if (
                 is_property_setter(node)
@@ -176,7 +176,7 @@ def _check_docstring(
                 # If the module does not have a body, there's no reason
                 # to require a docstring.
                 return
-            max_lines = self.config.docstring_min_length
+            max_lines = self.linter.namespace.docstring_min_length
 
             if node_type != "module" and max_lines > -1 and lines < max_lines:
                 return

pylint/checkers/refactoring/refactoring_checker.py

@@ -461,6 +461,7 @@ class RefactoringChecker(checkers.BaseTokenChecker):
             {
                 "default": ("sys.exit", "argparse.parse_error"),
                 "type": "csv",
+                "metavar": "<members names>",
                 "help": "Complete name of functions that never returns. When checking "
                 "for inconsistent-return-statements if a never returning function is "
                 "called then it will be considered as an explicit return statement "
@@ -469,8 +470,8 @@ class RefactoringChecker(checkers.BaseTokenChecker):
         ),
     )
 
-    def __init__(self, linter=None):
-        super().__init__(linter)
+    def __init__(self, linter):
+        super().__init__(linter, future_option_parsing=True)
         self._return_nodes = {}
         self._consider_using_with_stack = ConsiderUsingWithStack()
         self._init()
@@ -486,7 +487,9 @@ def _init(self):
 
     def open(self):
         # do this in open since config not fully initialized in __init__
-        self._never_returning_functions = set(self.config.never_returning_functions)
+        self._never_returning_functions = set(
+            self.linter.namespace.never_returning_functions
+        )
 
     @cached_property
     def _dummy_rgx(self):
@@ -1125,11 +1128,11 @@ def _check_nested_blocks(self, node):
             self._emit_nested_blocks_message_if_needed(nested_blocks)
 
     def _emit_nested_blocks_message_if_needed(self, nested_blocks):
-        if len(nested_blocks) > self.config.max_nested_blocks:
+        if len(nested_blocks) > self.linter.namespace.max_nested_blocks:
             self.add_message(
                 "too-many-nested-blocks",
                 node=nested_blocks[0],
-                args=(len(nested_blocks), self.config.max_nested_blocks),
+                args=(len(nested_blocks), self.linter.namespace.max_nested_blocks),
             )
 
     def _emit_consider_using_with_if_needed(self, stack: Dict[str, nodes.NodeNG]):

pylint/checkers/spelling.py

@@ -263,44 +263,48 @@ class SpellingChecker(BaseTokenChecker):
         ),
     )
 
+    def __init__(self, linter: "PyLinter") -> None:
+        super().__init__(linter, future_option_parsing=True)
+
     def open(self):
         self.initialized = False
         self.private_dict_file = None
 
         if enchant is None:
             return
-        dict_name = self.config.spelling_dict
+        dict_name = self.linter.namespace.spelling_dict
         if not dict_name:
             return
 
         self.ignore_list = [
-            w.strip() for w in self.config.spelling_ignore_words.split(",")
+            w.strip() for w in self.linter.namespace.spelling_ignore_words.split(",")
         ]
         # "param" appears in docstring in param description and
         # "pylint" appears in comments in pylint pragmas.
         self.ignore_list.extend(["param", "pylint"])
 
         self.ignore_comment_directive_list = [
-            w.strip() for w in self.config.spelling_ignore_comment_directives.split(",")
+            w.strip()
+            for w in self.linter.namespace.spelling_ignore_comment_directives.split(",")
         ]
 
         # Expand tilde to allow e.g. spelling-private-dict-file = ~/.pylintdict
-        if self.config.spelling_private_dict_file:
-            self.config.spelling_private_dict_file = os.path.expanduser(
-                self.config.spelling_private_dict_file
+        if self.linter.namespace.spelling_private_dict_file:
+            self.linter.namespace.spelling_private_dict_file = os.path.expanduser(
+                self.linter.namespace.spelling_private_dict_file
             )
 
-        if self.config.spelling_private_dict_file:
+        if self.linter.namespace.spelling_private_dict_file:
             self.spelling_dict = enchant.DictWithPWL(
-                dict_name, self.config.spelling_private_dict_file
+                dict_name, self.linter.namespace.spelling_private_dict_file
             )
             self.private_dict_file = open(  # pylint: disable=consider-using-with
-                self.config.spelling_private_dict_file, "a", encoding="utf-8"
+                self.linter.namespace.spelling_private_dict_file, "a", encoding="utf-8"
             )
         else:
             self.spelling_dict = enchant.Dict(dict_name)
 
-        if self.config.spelling_store_unknown_words:
+        if self.linter.namespace.spelling_store_unknown_words:
             self.unknown_words = set()
 
         self.tokenizer = get_tokenizer(
@@ -374,14 +378,14 @@ def _check_spelling(self, msgid, line, line_num):
                 continue
 
             # Store word to private dict or raise a message.
-            if self.config.spelling_store_unknown_words:
+            if self.linter.namespace.spelling_store_unknown_words:
                 if lower_cased_word not in self.unknown_words:
                     self.private_dict_file.write(f"{lower_cased_word}\n")
                     self.unknown_words.add(lower_cased_word)
             else:
                 # Present up to N suggestions.
                 suggestions = self.spelling_dict.suggest(word)
-                del suggestions[self.config.max_spelling_suggestions :]
+                del suggestions[self.linter.namespace.max_spelling_suggestions :]
                 line_segment = line[word_start_at:]
                 match = re.search(rf"(\W|^)({word})(\W|$)", line_segment)
                 if match: