[MacPorts] #63293: OpenCV Symbol not found: _av_dict_parse_string

[MacPorts]

#63293: OpenCV Symbol not found: _av_dict_parse_string
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  Reporter:  fmw42   |      Owner:  mascguy
      Type:  defect  |     Status:  assigned
  Priority:  Normal  |  Milestone:
 Component:  ports   |    Version:  2.7.1
Resolution:          |   Keywords:  OpenCV, Python
      Port:  OpenCV  |
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Comment (by mascguy):

 More info:

 With `opencv3`, you can now install Python bindings for multiple versions.
 So if you also want to add OpenCV Python bindings for Python 3.9, for
 example, install `py39-opencv3`.

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Ticket URL: <https://trac.macports.org/ticket/63293#comment:4>
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