[Tutor] Python Function Doubt
nik.mis at gmail.com
Tue May 26 16:12:34 CEST 2009
Thanks for reply.
I went through the link you provided. It was very helpful.
What I understood is this,
--> Objects are created for default argument types, inside the function
happens only once when the function definition statement is executed.
persist between function calls and not destroyed/garbage collected.
--> Since List is a mutable object, changes are made to the same object and
it is visible between function calls.
Is my understanding correct ?
If so, I have a small doubt regarding function arguments.
Are objects for arguments, that persist between function calls, created
during function definition ONLY when they have default values ?
Objects are created for arguments irrespective of whether it has a default
value or not, but they are not persistent ( i.e a new object is created for
every function call ) ?
On Tue, May 26, 2009 at 6:29 PM, Christian Witts <cwitts at compuscan.co.za>wrote:
> It is a well known Python gotcha. Take a read through the "Mutable
> defaults for function/method arguments" section of
> Hope that helps your understanding.
> Kind Regards,
> Christian Witts
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