[MacPorts] #51998: update py-pylint to 1.6.4 ; new dependencies -> add ports py-isort and py-backports-functools_lru_cache

[MacPorts]

#51998: update py-pylint to 1.6.4 ; new dependencies -> add ports py-isort and py-
backports-functools_lru_cache
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  Reporter:  ottenr.work@…  |      Owner:  blair@…
      Type:  update         |     Status:  new
  Priority:  Normal         |  Milestone:
 Component:  ports          |    Version:
Resolution:                 |   Keywords:
      Port:  py-pylint      |
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Comment (by ryandesign@…):

 py-backports-functools_lru_cache  was added in r151396 but it
 [https://build.macports.org/builders/ports-10.11_x86_64-builder/builds/1215
 fails to build] with:

 {{{
 Download error on https://pypi.python.org/simple/setuptools_scm/: [SSL:
 CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:590) -- Some
 packages may not be found!
 }}}

 Maybe it needs a dependency on port:py${python.version}-setuptools_scm?

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Ticket URL: <https://trac.macports.org/ticket/51998#comment:2>
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