[MacPorts] #65145: py39-matplotlib @3.5.2_0: plotting problem in IPython with %matplotlib

[MacPorts]

#65145: py39-matplotlib @3.5.2_0: plotting problem in IPython with %matplotlib
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  Reporter:  aaronm6        |      Owner:  reneeotten
      Type:  defect         |     Status:  assigned
  Priority:  Normal         |  Milestone:
 Component:  ports          |    Version:  2.7.2
Resolution:                 |   Keywords:
      Port:  py-matplotlib  |
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Comment (by reneeotten):

 I can indeed reproduce what you're seeing on macOS Catalina as well.
 However, I am not convinced this is a MacPorts-specific issue as the same
 happens when I use a `virtualenv` and install the packages through `pip`.

 Have you verified that it works as intended when installing the packages
 not through MacPorts (i.e., using `conda` or with a virtualenv - although
 in the latter case it might still use MacPort's Python install). Anyway,
 you probably get my point: is it cause by the way we install things in
 MacPorts or is it an upstream bug in `matplotlib`, `ipython` or any of the
 other depdencies?

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Ticket URL: <https://trac.macports.org/ticket/65145#comment:2>
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