Large code refactor to enable a bunch of additional ruff rulesets

CHANGELOG.md

@@ -2,6 +2,7 @@
 
 - Breaking Change
     - `cmd2` 2.6 supports Python 3.9+ (removed support for Python 3.8)
+    - Renamed methods in `cmd2.ansi.Cursor` to make it clear they are intended for internal use only as was documented
 - Enhancements
     - Add support for Python 3.14
 

Makefile

@@ -13,6 +13,18 @@ check: ## Run code quality tools.
 	@echo "🚀 Static type checking: Running mypy"
 	@uv run mypy
 
+.PHONY: format
+format: ## Perform ruff formatting
+	@uv run ruff format
+
+.PHONY: lint
+lint: ## Perform ruff linting
+	@uv run ruff check --fix
+
+.PHONY: typecheck
+typecheck: ## Perform type checking
+	@uv run mypy
+
 .PHONY: test
 test: ## Test the code with pytest.
 	@echo "🚀 Testing code: Running pytest"

cmd2/__init__.py

@@ -1,26 +1,21 @@
-#
-# -*- coding: utf-8 -*-
-# flake8: noqa F401
 """This simply imports certain things for backwards compatibility."""
 
-import sys
-
+import argparse
 import importlib.metadata as importlib_metadata
+import sys
 
 try:
     __version__ = importlib_metadata.version(__name__)
 except importlib_metadata.PackageNotFoundError:  # pragma: no cover
     # package is not installed
     pass
 
-from typing import List
-
 from .ansi import (
-    Cursor,
     Bg,
-    Fg,
+    Cursor,
     EightBitBg,
     EightBitFg,
+    Fg,
     RgbBg,
     RgbFg,
     TextStyle,
@@ -36,34 +31,30 @@
 
 # Check if user has defined a module that sets a custom value for argparse_custom.DEFAULT_ARGUMENT_PARSER.
 # Do this before loading cmd2.Cmd class so its commands use the custom parser.
-import argparse
-
 cmd2_parser_module = getattr(argparse, 'cmd2_parser_module', None)
 if cmd2_parser_module is not None:
     import importlib
 
     importlib.import_module(cmd2_parser_module)
 
+from . import plugin
 from .argparse_completer import set_default_ap_completer_type
-
 from .cmd2 import Cmd
 from .command_definition import CommandSet, with_default_category
 from .constants import COMMAND_NAME, DEFAULT_SHORTCUTS
-from .decorators import with_argument_list, with_argparser, with_category, as_subcommand_to
+from .decorators import as_subcommand_to, with_argparser, with_argument_list, with_category
 from .exceptions import (
     Cmd2ArgparseError,
     CommandSetRegistrationError,
     CompletionError,
     PassThroughException,
     SkipPostcommandHooks,
 )
-from . import plugin
 from .parsing import Statement
 from .py_bridge import CommandResult
-from .utils import categorize, CompletionMode, CustomCompletionSettings, Settable
-
+from .utils import CompletionMode, CustomCompletionSettings, Settable, categorize
 
-__all__: List[str] = [
+__all__: list[str] = [
     'COMMAND_NAME',
     'DEFAULT_SHORTCUTS',
     # ANSI Exports