On Sun, 13 Sep 2009 15:30:52 +0200, Christian Heimes wrote:
> Peng Yu schrieb:
>> Hi,
>>
>> I want to define a function without anything in it body. In C++, I can
>> do something like the following because I can use "{}" to denote an
>> empty function body. Since python use indentation, I am not sure how to
>> do it. Can somebody let me know how to do it in python?
>
> Python has two possibilities to create an empty function. The others
> already told you aber the pass statement. The other way is a function
> with a doc string
>
> def func():
> """No op function
> """
There are more than just two possibilities. Here are three trivial
variations on the same technique:
def func():
return
def func():
return None
lambda: None
and two slightly more complex variations:
new.function(compile("", "", "exec"), {})
# given some existing function f:
type(f)(compile("", "", "exec"), {})
--
Steven
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