On Tuesday, June 28, 2016 at 5:03:08 PM UTC+12, Ben Finney wrote:
> There is a clever one-line decorator that has been copy-pasted without
> explanation in many code bases for many years::
>
> decorator_with_args = lambda decorator: lambda *args, **kwargs: lambda
> func: decorator(func, *args, **kwargs)
>
For those who want docstrings, I’ll give you docstrings:
def decorator_with_args(decorator) :
"given function decorator(func, *args, **kwargs), returns a decorator
which," \
" given func, returns the result of decorator(func, *args, **kwargs)."
def decorate(*args, **kwargs) :
def generated_decorator(func) :
return \
decorator(func, *args, **kwargs)
#end generated_decorator
#begin decorate
generated_decorator.__name__ =
"decorator_{}".format(decorator.__name__)
generated_decorator.__doc__ = "decorator which applies {} to the
previously-specified arguments".format(decorator.__name__)
return \
generated_decorator
#end decorate
#begin decorator_with_args
decorate.__name__ = "decorate_with_{}".format(decorator.__name__)
decorate.__doc__ = "generates a decorator which applies {} to the given
arguments".format(decorator.__name__)
return \
decorate
#end decorator_with_args
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