[MacPorts] #55045: py27-rpy2 fails to build because "rpy2 is no longer supporting Python < 3."

[MacPorts]

#55045: py27-rpy2 fails to build because "rpy2 is no longer supporting Python < 3."
------------------------------+-----------------------
 Reporter:  matt-hammond-bbc  |      Owner:
     Type:  defect            |     Status:  new
 Priority:  Normal            |  Milestone:
Component:  ports             |    Version:
 Keywords:                    |       Port:  py27-rpy2
------------------------------+-----------------------
 Package py27-rpy2 fails to build. main.log indicates that this is because
 the version of rpy2 being built no longer supports python 2.x:

 {{{
 ...
 :info:build Executing:  cd
 "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports
 .org_release_tarballs_ports_python_py-rpy2/py27-rpy2/work/rpy2-2.9.0" &&
 /opt/local/Library/Frameworks/Python.framework/Versions/2.7/bin/python2.7
 setup.py --no-user-cfg build
 :debug:build system:  cd
 "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports
 .org_release_tarballs_ports_python_py-rpy2/py27-rpy2/work/rpy2-2.9.0" &&
 /opt/local/Library/Frameworks/Python.framework/Versions/2.7/bin/python2.7
 setup.py --no-user-cfg build
 :info:build rpy2 is no longer supporting Python < 3. Consider using an
 older rpy2 release when using an older Python release.
 :info:build Command failed:  cd
 "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports
 .org_release_tarballs_ports_python_py-rpy2/py27-rpy2/work/rpy2-2.9.0" &&
 /opt/local/Library/Frameworks/Python.framework/Versions/2.7/bin/python2.7
 setup.py --no-user-cfg build
 :info:build Exit code: 1
 ...
 }}}

 Am building on OS X 10.12.6 with XCode 9.0 and MacPorts 2.4.2

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Ticket URL: <https://trac.macports.org/ticket/55045>
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