Add mypy hints to fixit/cli.py.

.github/workflows/ci.yml

@@ -18,3 +18,4 @@ jobs:
           python-version: ${{ matrix.python-version }}
       - run: pip install -e ".[dev]"
       - run: pytest
+      - run: mypy fixit

README.hi.md

@@ -7,6 +7,7 @@
 ![PRs Welcome](https://img.shields.io/badge/PRs-welcome-brightgreen)
 ![good first issues](https://img.shields.io/badge/good%20first%20issues-30%2B-orange)
 [![Ruff](https://github.com/codepiyusss/open_source_issue_contribution/actions/workflows/ruff.yml/badge.svg)](https://github.com/codepiyusss/open_source_issue_contribution/actions/workflows/ruff.yml)
+[![CI](https://github.com/codepiyusss/open_source_issue_contribution/actions/workflows/ci.yml/badge.svg)](https://github.com/codepiyusss/open_source_issue_contribution/actions/workflows/ci.yml)
 
 ## 🎯 यह क्या है?
 

README.md

@@ -9,6 +9,7 @@
 ![PRs Welcome](https://img.shields.io/badge/PRs-welcome-brightgreen)
 ![good first issues](https://img.shields.io/badge/good%20first%20issues-30%2B-orange)
 [![Ruff](https://github.com/codepiyusss/open_source_issue_contribution/actions/workflows/ruff.yml/badge.svg)](https://github.com/codepiyusss/open_source_issue_contribution/actions/workflows/ruff.yml)
+[![CI](https://github.com/codepiyusss/open_source_issue_contribution/actions/workflows/ci.yml/badge.svg)](https://github.com/codepiyusss/open_source_issue_contribution/actions/workflows/ci.yml)
 
 ## 🎯 What is this?
 

fixit/cli.py

@@ -3,7 +3,9 @@
 import argparse
 import sys
 import uuid
+from collections.abc import Sequence
 from pathlib import Path
+from typing import Optional
 
 from fixit import __version__, convert, jsonfmt, password, textutils, wordcount
 
@@ -15,7 +17,7 @@
 }
 
 
-def run_wc(args):
+def run_wc(args: argparse.Namespace) -> None:
     if args.file is not None:
         try:
             text = args.file.read_text(encoding="utf-8")
@@ -33,44 +35,44 @@ def run_wc(args):
     )
 
 
-def run_convert(args):
+def run_convert(args: argparse.Namespace) -> None:
     try:
         result = CONVERSIONS[args.kind](args.value)
         print(result)
     except KeyError:
         raise ValueError(f"Error: unknown conversion '{args.kind}'")
 
 
-def run_password(args):
+def run_password(args: argparse.Namespace) -> None:
     print(password.generate(args.length, use_symbols=args.symbols))
 
 
-def run_uuid(args):
+def run_uuid(args: argparse.Namespace) -> None:
     for _ in range(args.count):
         print(uuid.uuid4())
 
 
-def run_json(args):
+def run_json(args: argparse.Namespace) -> None:
     try:
         print(jsonfmt.format_json(args.raw))
     except ValueError as e:
         raise ValueError(f"Error: invalid JSON - {e}")
 
 
-def run_palindrome(args):
+def run_palindrome(args: argparse.Namespace) -> None:
     print(textutils.is_palindrome(args.text))
 
 
-def run_reverse(args):
+def run_reverse(args: argparse.Namespace) -> None:
     print(textutils.reverse_words(args.text))
 
 
-def run_top_words(args):
+def run_top_words(args: argparse.Namespace) -> None:
     for word, count in wordcount.top_words(args.text, args.n):
         print(f"{word}: {count}")
 
 
-def run_slugify(args):
+def run_slugify(args: argparse.Namespace) -> None:
     print(textutils.slugify(args.text))
 
 
@@ -137,7 +139,7 @@ def build_parser() -> argparse.ArgumentParser:
     return parser
 
 
-def main(argv=None) -> int:
+def main(argv: Optional[Sequence[str]] = None) -> int:
     """Run a fixit command and return its exit status.
 
     Example:

pyproject.toml

@@ -11,7 +11,7 @@ requires-python = ">=3.8"
 license = { text = "MIT" }
 
 [project.optional-dependencies]
-dev = ["pytest", "ruff>=0.12.0"]
+dev = ["pytest", "ruff>=0.12.0", "mypy>=1.0,<2"]
 
 [project.scripts]
 fixit = "fixit.cli:main"
@@ -23,5 +23,11 @@ packages = ["fixit"]
 line-length = 88
 target-version = "py39"
 
+[tool.ruff.lint.per-file-ignores]
+"fixit/cli.py" = ["FA100"]
+
 [tool.pytest.ini_options]
 testpaths = ["tests"]
+
+[tool.mypy]
+python_version = "3.9"