py36-matplotlib @3.1.3 broken

[Sean Lake]

Hello all,

I notice that a "port upgrade outdated" upgraded matplotlib. Now
importing matplotlib.axes fails. Is there a fix I can do on my end?

Also, should I have cced the package's maintainer on this email?

Thanks,
Sean Lake

Program output:
Seans-Work-Macbook-Pro:~ sean$ python3.6
Python 3.6.10 (default, Dec 21 2019, 11:40:12)
[GCC 4.2.1 Compatible Apple LLVM 10.0.1 (clang-1001.0.46.4)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import matplotlib.axes as mpax
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/opt/local/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/matplotlib/axes/__init__.py",
line 1, in <module>
    from ._subplots import *
  File "/opt/local/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/matplotlib/axes/_subplots.py",
line 5, in <module>
    import matplotlib.artist as martist
  File "/opt/local/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/matplotlib/artist.py",
line 13, in <module>
    from .path import Path
  File "/opt/local/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/matplotlib/path.py",
line 17, in <module>
    from . import _path, cbook, rcParams
ImportError: dlopen(/opt/local/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/matplotlib/_path.cpython-36m-darwin.so,
2): Symbol not found: _MPL_matplotlib__contour_ARRAY_API
  Referenced from:
/opt/local/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/matplotlib/_path.cpython-36m-darwin.so
  Expected in: flat namespace
 in /opt/local/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/matplotlib/_path.cpython-36m-darwin.so