Hi,
Python 3.9 introduced incompatible changes which broke Django and
Tornado benchmarks of pyperformance. But Python 2.7 support prevented
me to upgrade Django and Tornado which were stuck to Django 1.11.x and
Tornado 5.x.
I decided to drop Python 2.7 support in pyperformance to support
Python 3.9. So I was able to upgrade to Django 3.x and Tornado 6.x.
PyPy is still supported but only PyPy3 (basic support, no benchmark is
adjusted for PyPy JIT compiler).
So if you want to compare Python 2 to Python 3, you will be limited to
pyperformance 0.9.1 which supports Python 2.7 and Python 3.8.
Victor
--
Night gathers, and now my watch begins. It shall not end until my death.