Prasad, Ramit wrote:
Interesting thread and webpages. Insightful, but is this really
used as a technique in daily practice? It feels a bit like a hack
to me. Like the author of one of the websites said: rule #1 don't
mess with this.
I think the problem with rule #1 is that this can occur when y
On 21/10/11 21:40, Albert-Jan Roskam wrote:
Interesting thread and webpages. Insightful, but is this really used as
a technique in daily practice?
Yes, one example is where you use it for a counter to
determine how often a function gets called:
def reserveScarceResource(p1,p2,count = [0]): :
>Interesting thread and webpages. Insightful, but is this really used as a
>technique in daily practice? It feels a bit like a hack to me. Like the author
>of one of the websites said: rule #1 don't mess with this.
I think the problem with rule #1 is that this can occur when you do *not*
under
or us?
~~
>
>From: "Prasad, Ramit"
>To: "tutor@python.org"
>Sent: Friday, October 21, 2011 9:40 PM
>Subject: Re: [Tutor] functions and default argument
>
>>The same thing occurs when you use a mutable object like a list or a
>>dict. The default
>The same thing occurs when you use a mutable object like a list or a
>dict. The default value is assigned once, and once only. But notice that
>you can modify the default value, say by appending to it:
Not sure this will work exactly the same way in other IDEs, but in mine:
>>> a = []
>>> def
Praveen Singh wrote:
In function-
"Default value is *evaluated only once*.This makes different when the
default is a mutable object such as a list, dictionary or instance of most
classes."
I am not getting it properly-evaluated once?? different behaviour???--
please explain this.
Look at an
On 2011/10/21 03:00 PM, Praveen Singh wrote:
In function-
"Default value is *evaluated only once*.This makes different when the
default is a mutable object such as a list, dictionary or instance of
most classes."
I am not getting it properly-evaluated once?? different behaviour???--
please
In function-
"Default value is *evaluated only once*.This makes different when the
default is a mutable object such as a list, dictionary or instance of most
classes."
I am not getting it properly-evaluated once?? different behaviour???--
please explain this.
_
