I'm trying to understand decorating decorators, and wanted to try out the following:
Let's say I have two decorators and apply them to the function hello:
def wrap(f):
def wrapper():
return " ".join(f())
return wrapper
def upper(f):
def uppercase(*args, **kargs):
a,b = f(*args, **kargs)
return a.upper(), b.upper()
return uppercase
@wrap
@upper
def hello():
return "hello","world"
print hello()
Then I have to start adding other decorators for other functions,
but in general the wrap decorator will "wrap all of them"
def lower(f):
def lowercase(*args, **kargs):
a,b = f(*args, **kargs)
return a.lower(), b.lower()
return lowercase
@wrap
@lower
def byebye():
return "bye", "bye"
Now how do I write a decorator, with witch I can decorate my lower and upper decorators:
@wrap
def lower():
...
@wrap
def upper():
...
To achieve the same result as above by only doing:
@upper
def hello():
...
@lower
def byebye():
...
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