refactor: switch from use of ABCMeta to ABC

Author: tysmith

src/grizzly/adapter/adapter.py

@@ -3,7 +3,7 @@
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
 from __future__ import annotations
 
-from abc import ABCMeta, abstractmethod
+from abc import ABC, abstractmethod
 from pathlib import Path
 from typing import TYPE_CHECKING, Any, final
 
@@ -27,7 +27,7 @@ class AdapterError(Exception):
     """The base class for exceptions raised by an Adapter"""
 
 
-class Adapter(metaclass=ABCMeta):
+class Adapter(ABC):
     """An Adapter is the interface between Grizzly and a fuzzer. A subclass must
     be created in order to add support for additional fuzzers. The Adapter is
     responsible for handling input/output data and executing the fuzzer.

src/grizzly/common/reporter.py

@@ -3,7 +3,7 @@
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
 from __future__ import annotations
 
-from abc import ABCMeta, abstractmethod
+from abc import ABC, abstractmethod
 from enum import IntEnum, unique
 from json import dumps, loads
 from logging import getLogger
@@ -56,7 +56,7 @@ class Quality(IntEnum):
     NOT_REPRODUCIBLE = 10
 
 
-class Reporter(metaclass=ABCMeta):
+class Reporter(ABC):
     __slots__ = ("display_logs",)
 
     def __init__(self) -> None:

src/grizzly/target/target.py

@@ -3,7 +3,7 @@
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
 from __future__ import annotations
 
-from abc import ABCMeta, abstractmethod
+from abc import ABC, abstractmethod
 from enum import IntEnum, unique
 from logging import getLogger
 from os import environ
@@ -54,7 +54,7 @@ class TargetLaunchTimeout(TargetError):
     """Raised if the target does not launch within the defined amount of time"""
 
 
-class Target(metaclass=ABCMeta):
+class Target(ABC):
     SUPPORTED_ASSETS: tuple[str, ...] = ()
     TRACKED_ENVVARS: tuple[str, ...] = ()
 

src/grizzly/target/target_monitor.py

@@ -3,14 +3,14 @@
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
 from __future__ import annotations
 
-from abc import ABCMeta, abstractmethod
+from abc import ABC, abstractmethod
 
 __all__ = ("TargetMonitor",)
 __author__ = "Tyson Smith"
 __credits__ = ["Tyson Smith", "Jesse Schwartzentruber"]
 
 
-class TargetMonitor(metaclass=ABCMeta):
+class TargetMonitor(ABC):
     @abstractmethod
     def is_healthy(self) -> bool:
         """Check for failures such as assertions, crashes, etc.