[MacPorts] #55977: update the py*-pip packages (py27-pip, py36-pip, etc) to add new pip select targets for major python releases such as pip2 or pip3

[MacPorts]

#55977: update the py*-pip packages (py27-pip, py36-pip, etc) to add new pip select
targets for major python releases such as pip2 or pip3
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  Reporter:  qbuchanan    |      Owner:  stromnov
      Type:  enhancement  |     Status:  assigned
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:
Resolution:               |   Keywords:
      Port:  py-pip       |
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Comment (by sgbotsford):

 FWIW searching for pip3 in my mac ports tree didn't find it.  Searching
 for pip brought up lots of things.  It took a fair amount of groveling to
 find out that it was called py-pip.

 Since pip is used for maintaining a set of modules to use with python,
 would it not make sense to include it by default in the distribution?

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Ticket URL: <https://trac.macports.org/ticket/55977#comment:2>
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