Enable ruff YTT ruleset and fix the one warning

Author: tleonhardt

cmd2/argparse_custom.py

@@ -1261,7 +1261,7 @@ def __init__(
                                   behavior on this parser. If this is None or not present, then cmd2 will use
                                   argparse_completer.DEFAULT_AP_COMPLETER when tab completing this parser's arguments
         """
-        if sys.version_info[1] >= 14:
+        if sys.version_info >= (3, 14):
             # Python >= 3.14 so pass new arguments to parent argparse.ArgumentParser class
             super(Cmd2ArgumentParser, self).__init__(
                 prog=prog,

pyproject.toml

@@ -217,8 +217,8 @@ select = [
     "TID", # flake8-tidy-imports (extra import rules to check)
     # "TRY",  # tryceratops (warnings related to exceptions and try/except)
     # "UP", # pyupgrade (A tool (and pre-commit hook) to automatically upgrade syntax for newer versions of the language)
-    "W", # pycodestyle warnings (warn about minor stylistic issues)
-    # "YTT", # flake8-2020 (checks for misuse of sys.version or sys.version_info)
+    "W",   # pycodestyle warnings (warn about minor stylistic issues)
+    "YTT", # flake8-2020 (checks for misuse of sys.version or sys.version_info)
 ]
 ignore = [
     # `uv run ruff rule E501` for a description of that rule