[MacPorts] #63918: IPython3-3.8 import of pyplot quits with 'Abort trap: 6'

[MacPorts]

#63918: IPython3-3.8 import of pyplot quits with 'Abort trap: 6'
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  Reporter:  aaronm6                    |      Owner:  lpsinger
      Type:  defect                     |     Status:  assigned
  Priority:  Normal                     |  Milestone:
 Component:  ports                      |    Version:  2.7.1
Resolution:                             |   Keywords:  pyplot, ipython
      Port:  py-ipython, py-matplotlib  |
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Comment (by someuser12):

 I can confirm this under Mac OS 10.15.7 (19H1715) with Darwin 19.6.0 and
 Python 3.8.12, IPython 8.0.1.

 The abort trap at exit after importing `shapely.geometry` also happens
 using python3.8 (not only IPython 3.8).

 This looks this might be related to a problem which occurs *at import*:
 importing `corner` or `pymc3`, both in python3.8 or ipython3-3.8, triggers
 a segmentation fault. Here also the traceback suggests it might be related
 to `libffi`. However, on another machine running the same OS (10.15.7) I
 *can't* reproduce the segfault importing `corner`, even though I can
 reproduce the abort trap caused by `matplotlib.pyplot` or
 `shapely.geometry`.

 Using python3.10, everything runs fine (importing `matplotlib.pyplot`,
 `shapely.geometry`, `corner`, or `pymc3` does not trigger any segfault or
 abort trap either at importation or while quitting python3.8 or
 ipython3-3.8).

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Ticket URL: <https://trac.macports.org/ticket/63918#comment:7>
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