[MacPorts] #50120: py-htseq @0.6.1: add note about optional dependency matplotlib

[MacPorts]

#50120: py-htseq @0.6.1: add note about optional dependency matplotlib
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  Reporter:  davide.liessi@…  |      Owner:  macports-tickets@…
      Type:  enhancement      |     Status:  new
  Priority:  Normal           |  Milestone:
 Component:  ports            |    Version:
Resolution:                   |   Keywords:  haspatch maintainer
      Port:  py-htseq         |
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Comment (by davide.liessi@…):

 Matplotlib is an optional runtime dependency: the installed files are the
 same regardless of whether matplotlib is installed or not, and htseq-qa
 correctly warns the user if it cannot find matplotlib.

 I'm still more inclined towards letting the user install py-matplotlib if
 it is actually needed, but I'd rather add matplotlib as a mandatory
 runtime dependency (even though it has a lot of dependencies) instead of
 defining a variant.

 Other opinions?

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Ticket URL: <https://trac.macports.org/ticket/50120#comment:3>
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