Could not import runpy module Traceback (most recent call last) "Python-3.9.5/Lib/typing.py", line 21, in import collections SystemError: returned NULL without setting an error generate-posix-vars failed

Could not import runpy module Traceback (most recent call last): File "Python-3.9.5/Lib/runpy.py", line 15, in <module> import importlib.util File "Python-3.9.5/Lib/importlib/util.py", line 2, in <module> from . import abc File "Python-3.9.5/Lib/importlib/abc.py", line 17, in <module> from typing import Protocol, runtime_checkable File "Python-3.9.5/Lib/typing.py", line 21, in <module> import collections SystemError: <built-in function compile> returned NULL without setting an error generate-posix-vars failed

Workaround

Compile without  --enable-optimizations in the configure step

Solution

Update to gcc 8.1.0