Bug#936076: Related(?) bug with python 3.8

[Raphaël Plasson]

It can be noticed that numba cannot be loaded at all with python 3.8:

Python 3.8.1 (default, Jan 19 2020, 22:34:33)
[GCC 9.2.1 20200117] on linux
Type "help", "copyright", "credits" or "license" for more information.
 >>> import numba
Traceback (most recent call last):
   File "<stdin>", line 1, in <module>
   File "/usr/lib/python3/dist-packages/numba/__init__.py", line 25, in 
<module>
     from .decorators import autojit, cfunc, generated_jit, jit, njit, 
stencil
   File "/usr/lib/python3/dist-packages/numba/decorators.py", line 12, 
in <module>
     from .targets import registry
   File "/usr/lib/python3/dist-packages/numba/targets/registry.py", line 
5, in <module>
     from . import cpu
   File "/usr/lib/python3/dist-packages/numba/targets/cpu.py", line 9, 
in <module>
     from numba import _dynfunc, config
ImportError: 
/usr/lib/python3/dist-packages/numba/_dynfunc.cpython-38-x86_64-linux-gnu.so: 
undefined symbol: _PyObject_GC_UNTRACK


This bug is linked to this issue https://bugs.python.org/issue35081

I didn't open a new bug as this bug is also referring to 
_PyObject_GC_UNTRACK as an issue.

Raphaël