[RELEASE] Python 3.9.0b1 is now available for testing

[Robin Becker]

I used https://github.com/python/pyperformance pyperformance to compare Arch linux latest

> Python 3.8.3 (default, May 17 2020, 18:15:42) 
> [GCC 10.1.0] on linux
> Type "help", "copyright", "credits" or "license" for more information.
>>>> 

against a vanilla build (configure make makeinstall) of python 3.9b1

> Python 3.9.0b1 (default, May 19 2020, 21:09:14) 
> [GCC 10.1.0] on linux
> Type "help", "copyright", "credits" or "license" for more information.
>>>> 

I find all the bench marks seem to be slower in python 3.9b1.

> 38.json
> =======
> 
> Performance version: 1.0.1
> Report on Linux-5.6.14-arch1-1-x86_64-with-glibc2.2.5
> Number of logical CPUs: 4
> Start date: 2020-05-31 04:00:24.503704
> End date: 2020-05-31 04:22:44.961331
> 
> 39.json
> =======
> 
> Performance version: 1.0.1
> Report on Linux-5.6.14-arch1-1-x86_64-with-glibc2.31
> Number of logical CPUs: 4
> Start date: 2020-05-31 04:23:21.247268
> End date: 2020-05-31 04:49:09.891889
> 
> ### 2to3 ###
> Mean +- std dev: 437 ms +- 5 ms -> 548 ms +- 7 ms: 1.25x slower
> Significant (t=-96.22)
> 
> ### chameleon ###
> Mean +- std dev: 12.5 ms +- 0.1 ms -> 16.2 ms +- 0.2 ms: 1.30x slower
> Significant (t=-111.53)
 > .......

Is this because I haven't built in the same way as Arch or are there real slowdowns in this beta? Or even dumber have I 
got the results the wrong way round?
--
Robin Becker