mirror of
https://github.com/wassname/scikit-image.git
synced 2026-06-28 00:29:50 +08:00
Tony S Yu
44 lines
1.3 KiB
Python
44 lines
1.3 KiB
Python
import warnings
|
|
import functools
|
|
|
|
|
|
__all__ = ['deprecated']
|
|
|
|
|
|
class deprecated(object):
|
|
"""Decorator to mark deprecated functions with warning.
|
|
|
|
Adapted from <http://wiki.python.org/moin/PythonDecoratorLibrary>.
|
|
|
|
Parameters
|
|
----------
|
|
alt_func : str
|
|
If given, tell user what function to use instead.
|
|
behavior : {'warn', 'raise'}
|
|
Behavior during call to deprecated function: 'warn' = warn user that
|
|
function is deprecated; 'raise' = raise error.
|
|
"""
|
|
|
|
def __init__(self, alt_func=None, behavior='warn'):
|
|
self.alt_func = alt_func
|
|
self.behavior = behavior
|
|
|
|
def __call__(self, func):
|
|
|
|
msg = "Call to deprecated function `%s`." % func.__name__
|
|
if self.alt_func is not None:
|
|
msg = msg + " Use `%s` instead." % self.alt_func
|
|
|
|
@functools.wraps(func)
|
|
def wrapped(*args, **kwargs):
|
|
if self.behavior == 'warn':
|
|
warnings.warn_explicit(msg,
|
|
category=DeprecationWarning,
|
|
filename=func.func_code.co_filename,
|
|
lineno=func.func_code.co_firstlineno + 1)
|
|
elif self.behavior == 'raise':
|
|
raise DeprecationWarning(msg)
|
|
return func(*args, **kwargs)
|
|
|
|
return wrapped
|