Merge pull request #173 from dmtucker/dataclass

Replace attrs with dataclasses

Author: dmtucker

pyproject.toml

@@ -30,7 +30,6 @@ classifiers = [
 ]
 requires-python = ">=3.7"
 dependencies = [
- "attrs>=19.0",
  "filelock>=3.0",
  "mypy>=1.0",
  "pytest>=7.0",

src/pytest_mypy.py

@@ -1,12 +1,12 @@
 """Mypy static type checker plugin for Pytest"""
 
+from dataclasses import dataclass
 import json
 from pathlib import Path
 from tempfile import NamedTemporaryFile
 from typing import Dict, List, Optional, TextIO
 import warnings
 
-import attr
 from filelock import FileLock # type: ignore
 import mypy.api
 import pytest
@@ -197,18 +197,18 @@ def runtest(self):
  raise MypyError(f"mypy exited with status {results.status}.")
 
 
-@attr.s(frozen=True, kw_only=True)
+@dataclass(frozen=True) # compat python < 3.10 (kw_only=True)
 class MypyResults:
  """Parsed results from Mypy."""
 
  _abspath_errors_type = Dict[str, List[str]]
 
- opts = attr.ib(type=List[str])
- stdout = attr.ib(type=str)
- stderr = attr.ib(type=str)
- status = attr.ib(type=int)
- abspath_errors = attr.ib(type=_abspath_errors_type)
- unmatched_stdout = attr.ib(type=str)
+ opts: List[str]
+ stdout: str
+ stderr: str
+ status: int
+ abspath_errors: _abspath_errors_type
+ unmatched_stdout: str
 
  def dump(self, results_f: TextIO) -> None:
  """Cache results in a format that can be parsed by load()."""