On 12/15/09 6:42 PM, Peng Yu wrote:
> On Wed, Dec 16, 2009 at 10:19 AM, Mark Larsen<larsen...@gmail.com> wrote:
>>> I don't understand what '*' and '**' mean. Could somebody let me know?
>>
>> This is a python thing. '*' means that any number of arguments can be
>> passed as a tuple.
>>
>> For instance, I have function:
>>
>> def add(a,b):
>> return a+b
>>
>> I could call this with a tuple argument:
>>
>> var = (4,5)
>> add(*var)
>>
>> '**' means any number of keyword arguments (dict) could be passed:
>>
>> def add(a=1,b=1):
>> return a+b
>>
>> I could call this with keywords by:
>>
>> var = {'a': 4, 'b':5}
>> add(**var)
>
> Are '*' and '**' described somewhere in python's documentation? Would
> you please let me know where they are? Thank you!
http://docs.python.org/reference/expressions.html#calls
but Mark told you pretty much everything you should know to follow the
documentation, I think.
L.
> ------------------------------------------------------------------------------
> This SF.Net email is sponsored by the Verizon Developer Community
> Take advantage of Verizon's best-in-class app development support
> A streamlined, 14 day to market process makes app distribution fast and easy
> Join now and get one step closer to millions of Verizon customers
> http://p.sf.net/sfu/verizon-dev2dev
> _______________________________________________
> rpy-list mailing list
> rpy-list@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/rpy-list
------------------------------------------------------------------------------
This SF.Net email is sponsored by the Verizon Developer Community
Take advantage of Verizon's best-in-class app development support
A streamlined, 14 day to market process makes app distribution fast and easy
Join now and get one step closer to millions of Verizon customers
http://p.sf.net/sfu/verizon-dev2dev
_______________________________________________
rpy-list mailing list
rpy-list@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/rpy-list
