I believe this feature was introduced in Python 3.6. This implementation may be 3.6 <
Edit: Just checked the site and see it uses PyPy which states -- on their site -- the python version is 3.5.3
Edit: Just checked the site and see it uses PyPy which states -- on their site -- the python version is 3.5.3
a, *b = range(3)
which should be 3.5 i think.