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"""Deprecation tooling for Python functions and classes.
This package provides a simple decorator-based approach to deprecate functions,
methods, and classes while automatically forwarding calls to their replacements.
Main Features:
- Automatic call forwarding to new implementations
- Argument mapping and renaming between old and new APIs
- Customizable warning messages and output streams
- Per-function and per-argument warning tracking to prevent log spam
- Support for multiple deprecation levels via decorator stacking
- Audit tools for CI pipelines: wrapper validation, expiry enforcement, chain detection
- Testing utilities for writing deterministic tests
Core Components:
**Main Decorator** (:mod:`deprecate.deprecation`):
- :func:`~deprecate.deprecation.deprecated`: Decorator for marking functions/methods as deprecated
- :func:`~deprecate.utils.void`: Silences IDE and mypy warnings about unused parameters in deprecated stubs
**Audit** (:mod:`deprecate.audit`):
- :func:`~deprecate.audit.validate_deprecation_wrapper`: Validate a single wrapper's configuration
- :func:`~deprecate.audit.find_deprecation_wrappers`: Scan a package for all deprecated wrappers
- :func:`~deprecate.audit.generate_deprecation_table`: Build compact or matrix markdown deprecation tables
- :func:`~deprecate.audit.validate_deprecation_expiry`: Detect wrappers that outlived their ``remove_in`` deadline
- :func:`~deprecate.audit.validate_deprecation_chains`: Detect deprecated wrappers chaining to
other deprecated wrappers
- :class:`~deprecate.audit.DeprecationWrapperInfo`: Structured result returned by the audit functions
- :class:`~deprecate.audit.ChainType`: Enum describing the kind of deprecation chain detected
**Proxy** (:mod:`deprecate.proxy`):
- :func:`~deprecate.proxy.deprecated_instance`: Wrap any object with deprecation warnings
- :func:`~deprecate.proxy.deprecated_class`: Decorator for deprecating Enum/dataclass definitions
**Testing** (:mod:`deprecate.utils`):
- :func:`~deprecate.utils.assert_no_warnings`: Context manager asserting that no warnings are raised
Quick Example:
>>> from deprecate import deprecated
>>>
>>> def new_function(x: int) -> int:
... '''New implementation.'''
... return x * 2
>>>
>>> @deprecated(target=new_function, deprecated_in="1.0", remove_in="2.0")
... def old_function(x: int) -> int:
... '''Old implementation - calls forwarded automatically.'''
... pass
>>>
>>> result = old_function(5) # Shows warning, returns 10
>>> print(result)
10
Complete Documentation:
For detailed examples and use cases, see:
https://borda.github.io/pyDeprecate
Topics covered:
- Simple function forwarding
- Advanced argument mapping
- Warning-only deprecation (``TargetMode.NOTIFY``)
- Self-deprecation (``TargetMode.ARGS_REMAP``)
- Multiple deprecation levels
- Conditional skip (skip_if parameter)
- Class deprecation
- Automatic docstring updates
- Auditing: wrapper configuration, expiry enforcement, chain detection
- Testing deprecated code
"""
from deprecate.__about__ import * # noqa: F403
from deprecate._types import TargetMode
from deprecate.audit import (
ChainType,
DeprecatedCallableInfo, # noqa: F401 # backward-compat alias for DeprecationWrapperInfo
DeprecationStatus,
DeprecationWrapperInfo,
TableStyle,
find_deprecated_callables, # noqa: F401 # deprecated since 0.6, use find_deprecation_wrappers
find_deprecation_wrappers,
generate_deprecation_table,
validate_deprecated_callable, # noqa: F401 # deprecated since 0.6, use validate_deprecation_wrapper
validate_deprecation_chains,
validate_deprecation_expiry,
validate_deprecation_wrapper,
validate_mapping_compatibility,
)
# Opt-in strict ``property`` replacement: ``from deprecate import property`` shadows the builtin
# in the importing module only, rejecting inner-order ``@property @deprecated`` at class-body time.
from deprecate.deprecation import (
_StrictProperty as property, # noqa: F401 # intentional: explicit-import only; excluded from __all__ to prevent star-import from silently enabling strict mode
)
from deprecate.deprecation import deprecated
from deprecate.proxy import deprecated_class, deprecated_instance
from deprecate.utils import (
assert_no_warnings,
no_warning_call, # noqa: F401 # deprecated since 0.6, use assert_no_warnings
void,
)
__all__ = [
"ChainType",
"DeprecationStatus",
"DeprecationWrapperInfo",
"TableStyle",
"TargetMode",
"assert_no_warnings",
"deprecated",
"deprecated_class",
"deprecated_instance",
"find_deprecation_wrappers",
"generate_deprecation_table",
"validate_deprecation_chains",
"validate_deprecation_expiry",
"validate_deprecation_wrapper",
"validate_mapping_compatibility",
"void",
]