Greg writes:
> This is one of my top two Java features [1].
...
> [1] The other is compiler recognition of "@deprecated" in doc comments.
Hmm... what a good idea! Let's see... what exactly does "@deprecated" DO in
Java? Why it causes the compiler to emit a warning if you use the function in
question. Not a bad idea. Amusingly enough, the syntax is even the same in
Python:
===== code =====
import warnings
def deprecated(func):
"""This is a decorator which can be used to mark functions
as deprecated. It will result in a warning being emmitted
when the function is used."""
def newFunc(*args, **kwargs):
warnings.warn("Call to deprecated function.")
return func(*args, **kwargs)
return newFunc
===== example =====
>>> @deprecated
def func(x,y):
return x + y
>>> func(3,4)
Warning (from warnings module):
File "g:/Documents/Personal/Python/deprecated.py", line 10
warnings.warn("Call to deprecated function.")
UserWarning: Call to deprecated function.
7
So... shall I go add this to the cookbook?
-- Michael Chermside
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