bpo-38659: [Enum] add _simple_enum decorator (GH-25497)
add:
* `_simple_enum` decorator to transform a normal class into an enum
* `_test_simple_enum` function to compare
* `_old_convert_` to enable checking `_convert_` generated enums
`_simple_enum` takes a normal class and converts it into an enum:
@simple_enum(Enum)
class Color:
RED = 1
GREEN = 2
BLUE = 3
`_old_convert_` works much like` _convert_` does, using the original logic:
# in a test file
import socket, enum
CheckedAddressFamily = enum._old_convert_(
enum.IntEnum, 'AddressFamily', 'socket',
lambda C: C.isupper() and C.startswith('AF_'),
source=_socket,
)
`_test_simple_enum` takes a traditional enum and a simple enum and
compares the two:
# in the REPL or the same module as Color
class CheckedColor(Enum):
RED = 1
GREEN = 2
BLUE = 3
_test_simple_enum(CheckedColor, Color)
_test_simple_enum(CheckedAddressFamily, socket.AddressFamily)
Any important differences will raise a TypeErrordiff --git a/Lib/pstats.py b/Lib/pstats.py
index 0f93ae0..e77459d 100644
--- a/Lib/pstats.py
+++ b/Lib/pstats.py
@@ -26,14 +26,15 @@
import marshal
import re
-from enum import Enum
+from enum import StrEnum, _simple_enum
from functools import cmp_to_key
from dataclasses import dataclass
from typing import Dict
__all__ = ["Stats", "SortKey", "FunctionProfile", "StatsProfile"]
-class SortKey(str, Enum):
+@_simple_enum(StrEnum)
+class SortKey:
CALLS = 'calls', 'ncalls'
CUMULATIVE = 'cumulative', 'cumtime'
FILENAME = 'filename', 'module'