Problem with Matplotlib example

[Martin Schöön]

Den 2023-04-13 skrev MRAB <python at mrabarnett.plus.com>:
> On 2023-04-13 19:41, Martin Schöön wrote:
>> Anyone had success running this example?
>> https://tinyurl.com/yhhyc9r
>> 
<snip>
>> As far as I know I have an up-to-date matplotlib installed. Pip has
>> nothing more modern to offer me.
>> 
> All I can say is that it works for me!
>
> Python 3.10 and 3.11, matplotlib 3.6.1 and then 3.7.1 after updating it.
>
Thanks are due to both you and Thomas. Your replies put me on the right
scent. I soon learned what I should have know since ages: pip reporting
there is now newer version of a package does not mean there is *no
newer* version. It means there is no newer version for the version of
Python I use. In my case I am on Python 3.7. At work, where I am on
Python 3.8, this matplotlib example works just fine.

/Martin