nltk.decorator()¶

nltk.decorator(caller)[source]¶

General purpose decorator factory: takes a caller function as input and returns a decorator with the same attributes. A caller function is any function like this:

def caller(func, *args, **kw):
    # do something
    return func(*args, **kw)

Here is an example of usage:

>>> @decorator
... def chatty(f, *args, **kw):
...     print("Calling %r" % f.__name__)
...     return f(*args, **kw)

>>> chatty.__name__
'chatty'

>>> @chatty
... def f(): pass
...
>>> f()
Calling 'f'

decorator can also take in input a class with a .caller method; in this case it converts the class into a factory of callable decorator objects. See the documentation for an example.