This is the wrong place to ask for a reason. It's just buggy. Some things
don't work as expected, some don't work at all. Sometimes, working around
these bugs is easy, sometimes it's not easy and sometimes it's impossible.
Some bugs get fixed, others don't.
PyPy3 is particularly buggy as it is a fork of the PyPy2 implementation and
not everything has been converted and adapted for Python 3 semantics yet.
Other things have been wrongly adapted or got broken along the way. Work in
progress, I guess.
This is the wrong place to ask for a reason. It's just buggy. Some things
don't work as expected, some don't work at all. Sometimes, working around
these bugs is easy, sometimes it's not easy and sometimes it's impossible.
Some bugs get fixed, others don't.
PyPy3 is particularly buggy as it is a fork of the PyPy2 implementation and
not everything has been converted and adapted for Python 3 semantics yet.
Other things have been wrongly adapted or got broken along the way. Work in
progress, I guess.