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import inspect
from collections.abc import Callable, Mapping, Sequence
from traceback import format_exception
from typing import Any, TypeVar
from django.utils.crypto import get_random_string
from typing_extensions import ParamSpec
T = TypeVar("T")
P = ParamSpec("P")
def is_module_level_function(func: Callable) -> bool:
if not inspect.isfunction(func) or inspect.isbuiltin(func):
return False
if "<locals>" in func.__qualname__:
return False
return True
def normalize_json(obj: Any) -> Any:
"""Recursively normalize an object into JSON-compatible types."""
match obj:
case Mapping():
return {normalize_json(k): normalize_json(v) for k, v in obj.items()}
case bytes():
try:
return obj.decode("utf-8")
except UnicodeDecodeError as e:
raise ValueError(f"Unsupported value: {type(obj)}") from e
case str() | int() | float() | bool() | None:
return obj
case Sequence(): # str and bytes were already handled.
return [normalize_json(v) for v in obj]
case _: # Other types can't be serialized to JSON
raise TypeError(f"Unsupported type: {type(obj)}")
def get_module_path(val: Any) -> str:
return f"{val.__module__}.{val.__qualname__}"
def get_exception_traceback(exc: BaseException) -> str:
return "".join(format_exception(exc))
def get_random_id() -> str:
"""
Return a random string for use as a Task or worker id.
Whilst 64 characters is the max, just use 32 as a sensible middle-ground.
"""
return get_random_string(32)
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