piotr.findeisen@gmail.com a écrit :
Quote:
Hello!
>
I wanted to use a decorator to wrap partially applied function like
this:
from functools import *
>
def never_throw(f):
@wraps(f)
def wrapper(*args, **kwargs):
try: return f(*args, **kwargs)
except: pass
|
Not an answer to your question, but: by all means, *never* use bare
except clauses. Please remember that SysExit and KeyboardInterrupt are
exceptions too.
Quote:
return wrapper
>
def foo(i):
raise ValueError(str(i) + " is too little")
>
never_throw(partial(foo, 3))
>
However this fails with an exception saying
AttributeError: 'functools.partial' object has no attribute
'__module__'.
>
How can I use generic wrapper (never_throw) around partials?
|
If not already done by someone else, it might be worth filling a ticket
- generic decorators should work with any callable, not only with
functions (well, IMHO at least).
A possible workaround is:
_dont_pass = (
SysExit,
KeyboardInterrupt,
OtherStuffYouDontWantToPassSilentyHere,
)
def never_throw(f):
"""well... almost never..."
try:
f.__module__
except AttributeError:
f.__module__ = "whatever"
@wraps(f)
def wrapper(*args, **kwargs):
try:
return f(*args, **kwargs)
except Exception, e:
if isinstance(e, _dont_pass):
raise
HTH
functools's partial and update_wrapper does not work together 
