Re: [Matplotlib-users] use of del() to delete a line

[John H. <jd...@gm...>]

On Thu, Dec 11, 2008 at 7:56 AM, TP <par...@fr...> wrote:
> TP wrote:
>
>> I have a question about the behavior of "del()" Python built-in.
>
> Ok, del only removes a name from the local namespace.
> I have found an old answer of John, below. It seems that a better solution
> is to use the remove method of a line instance:
>
> http://osdir.com/ml/python.matplotlib.general/2005-05/msg00045.html
>
> Until now, I used "del" which works well when the complete object hierarchy
> is given...

The line is stored in axes.lines list, so simply deleting it will not
work because there is a reference to it in the list.  You need to
remove it from the list, as you inidicate.  See also

http://matplotlib.sourceforge.net/users/artists.html