Core dev sprint this year

[ambv (Łukasz Langa)]

Note: PyPy is organizing a sprint as well and you’re all invited, too:

HPy/PyPy/GraalPy/CPython/* sprint in Düsseldorf (Germany) in September (19th-23rd)

Hi all! we are organizing a HPy/PyPy/GraalPy/CPython/* sprint at the University of Düsseldorf (Germany) from 19th of September to the 23rd. We wanted to extend the invitation to interested CPython developers! Cheers, Carl Friedrich