chore: Remove dependency on attrs

Author: Stranger6667

.pre-commit-config.yaml

@@ -63,7 +63,6 @@ repos:
       - id: mypy
         exclude: ^(docs/|test/).*$
         args: ["--ignore-missing-imports"]
-        additional_dependencies: [types-attrs]
 
   - repo: https://github.com/pre-commit/mirrors-pylint
     rev: v3.0.0a4

CHANGELOG.md

@@ -5,6 +5,7 @@
 ### Removed
 
 - Python 3.6 support.
+- Dependency on `attrs`.
 
 ## [0.9.2] - 2022-11-07
 

pyproject.toml

@@ -29,7 +29,6 @@ include = ["src/hypothesis_graphql/py.typed"]
 python = "^3.7"
 hypothesis = ">=5.8.0,<7.0"
 graphql-core = ">=3.1.0,<3.3.0"
-attrs = ">20.3.0,<=22.1.0"
 
 [tool.poetry.dev-dependencies]
 pytest = "^6.2.0"
@@ -44,7 +43,7 @@ multi_line_output = 3
 default_section = "THIRDPARTY"
 include_trailing_comma = true
 known_first_party = "hypothesis_graphql"
-known_third_party =["attr", "graphql", "hypothesis", "hypothesis_graphql", "pytest"]
+known_third_party =["graphql", "hypothesis", "hypothesis_graphql", "pytest"]
 
 [build-system]
 requires = ["poetry-core>=1.0"]

src/hypothesis_graphql/_strategies/strategy.py

@@ -1,10 +1,10 @@
 # pylint: disable=unused-import
+import dataclasses
 import operator
 from functools import reduce, wraps
 from operator import or_
 from typing import Any, Callable, Dict, Iterable, List, Optional, Tuple, Union
 
-import attr
 import graphql
 from graphql import is_equal_type
 from hypothesis import strategies as st
@@ -40,15 +40,15 @@ def wrapped(self: "GraphQLStrategy", *args: Any, **kwargs: Any) -> st.SearchStra
     return decorator
 
 
-@attr.s(slots=True)
+@dataclasses.dataclass
 class GraphQLStrategy:
     """Strategy for generating various GraphQL nodes."""
 
-    schema: graphql.GraphQLSchema = attr.ib()
-    custom_scalars: CustomScalarStrategies = attr.ib(factory=dict)
+    schema: graphql.GraphQLSchema
+    custom_scalars: CustomScalarStrategies = dataclasses.field(default_factory=dict)
     # As the schema is assumed to be immutable, there are a few strategy caches possible for internal components
     # This is a per-method cache without limits as they are proportionate to the schema size
-    _cache: Dict[str, Dict] = attr.ib(factory=dict)
+    _cache: Dict[str, Dict] = dataclasses.field(default_factory=dict)
 
     def values(
         self, type_: graphql.GraphQLInputType, default: Optional[graphql.ValueNode] = None

test/test_corpus.py

@@ -1,7 +1,8 @@
 import json
 import pathlib
+from dataclasses import dataclass
+from typing import Optional
 
-import attr
 import graphql
 import pytest
 from hypothesis import HealthCheck, Phase, Verbosity, given, settings
@@ -22,10 +23,10 @@
 }
 
 
-@attr.s(slots=True)
+@dataclass
 class Schema:
-    raw = attr.ib()
-    custom_scalars = attr.ib()
+    raw: dict
+    custom_scalars: Optional[dict]
 
 
 PLACEHOLDER_STRATEGY = st.just("placeholder").map(nodes.String)