Bug#942675: meshio not compatible with python 3.8, installation fails

[Matthias Klose]

Package: src:python-meshio
Version: 3.1.6-1
Severity; serious
Tags: sid bullseye

Trying to setup the package with pytho3-defaults installed from experimental, 
the installation fails when trying to compile with Python 3.8:

Setting up python3-meshio (3.1.6-1) ...
Traceback (most recent call last):
   File "/usr/lib/python3.8/py_compile.py", line 144, in compile
     code = loader.source_to_code(source_bytes, dfile or file,
   File "<frozen importlib._bootstrap_external>", line 846, in source_to_code
   File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
   File "/usr/lib/python3/dist-packages/meshio/_mdpa.py", line 338
     break
     ^
SyntaxError: 'break' outside loop